https://mysteamlesson.com weekly 1 https://mysteamlesson.com/lessons weekly 0.9 https://mysteamlesson.com/stations monthly 0.8 https://mysteamlesson.com/grade/tk monthly 0.8 https://mysteamlesson.com/grade/k monthly 0.8 https://mysteamlesson.com/grade/1st monthly 0.8 https://mysteamlesson.com/grade/2nd monthly 0.8 https://mysteamlesson.com/grade/3rd monthly 0.8 https://mysteamlesson.com/lesson/1st-01-homopolar-motor monthly 0.7 https://mysteamlesson.com/lesson/1st-01-magnet-through-coil-generates-voltage monthly 0.7 https://mysteamlesson.com/lesson/1st-01-simple-coil-motor monthly 0.7 https://mysteamlesson.com/lesson/1st-02-invisible-glass-in-oil monthly 0.7 https://mysteamlesson.com/lesson/1st-02-invisible-highlighter-ink-under-uv monthly 0.7 https://mysteamlesson.com/lesson/1st-02-tyndall-beam-appears-in-dilute-milk monthly 0.7 https://mysteamlesson.com/lesson/1st-04-balancing-soda-can monthly 0.7 https://mysteamlesson.com/lesson/1st-04-broom-finds-its-balance-point monthly 0.7 https://mysteamlesson.com/lesson/1st-04-pull-back-car-stores-energy monthly 0.7 https://mysteamlesson.com/lesson/1st-05-ferrofluid-spikes monthly 0.7 https://mysteamlesson.com/lesson/1st-05-speaker-becomes-a-microphone monthly 0.7 https://mysteamlesson.com/lesson/1st-05-tv-remote-seen-by-a-camera monthly 0.7 https://mysteamlesson.com/lesson/1st-07-colored-filters-remove-light monthly 0.7 https://mysteamlesson.com/lesson/1st-07-jello-light-pipe monthly 0.7 https://mysteamlesson.com/lesson/1st-07-rgb-light-color-mixing monthly 0.7 https://mysteamlesson.com/lesson/1st-08-domino-energy-transfer monthly 0.7 https://mysteamlesson.com/lesson/1st-08-double-pendulum-chaos monthly 0.7 https://mysteamlesson.com/lesson/1st-08-popper-toy-jumps-after-a-delay monthly 0.7 https://mysteamlesson.com/lesson/1st-10-hand-crank-generator-lights-an-led monthly 0.7 https://mysteamlesson.com/lesson/1st-10-lemon-battery monthly 0.7 https://mysteamlesson.com/lesson/1st-10-peltier-plate-one-side-hot-one-cold monthly 0.7 https://mysteamlesson.com/lesson/1st-11-afterimage-flag monthly 0.7 https://mysteamlesson.com/lesson/1st-11-benham-disk-color-illusion monthly 0.7 https://mysteamlesson.com/lesson/1st-11-pinhole-camera-image monthly 0.7 https://mysteamlesson.com/lesson/1st-13-bicycle-wheel-gyroscope monthly 0.7 https://mysteamlesson.com/lesson/1st-13-rice-friction-lift monthly 0.7 https://mysteamlesson.com/lesson/1st-13-yo-yo-energy-return monthly 0.7 https://mysteamlesson.com/lesson/1st-14-persistence-of-vision-led-wand monthly 0.7 https://mysteamlesson.com/lesson/1st-14-raw-vs-hard-boiled-egg-spin monthly 0.7 https://mysteamlesson.com/lesson/1st-14-supercooled-water-freezes-instantly monthly 0.7 https://mysteamlesson.com/lesson/1st-16-blind-spot-disappearing-dot monthly 0.7 https://mysteamlesson.com/lesson/1st-16-mirror-maze-reflection monthly 0.7 https://mysteamlesson.com/lesson/1st-16-peripheral-vision-loses-color monthly 0.7 https://mysteamlesson.com/lesson/1st-17-magnetic-levitation-spinning-top monthly 0.7 https://mysteamlesson.com/lesson/1st-17-pyrolytic-graphite-floats-over-magnets monthly 0.7 https://mysteamlesson.com/lesson/1st-17-thermochromic-pigment-changes-color monthly 0.7 https://mysteamlesson.com/lesson/1st-19-diffraction-grating-rainbow monthly 0.7 https://mysteamlesson.com/lesson/1st-19-oobleck-dances-on-a-speaker monthly 0.7 https://mysteamlesson.com/lesson/1st-19-pendulum-wave monthly 0.7 https://mysteamlesson.com/lesson/1st-20-magdeburg-suction-discs monthly 0.7 https://mysteamlesson.com/lesson/1st-20-paper-wont-enter-the-bottle monthly 0.7 https://mysteamlesson.com/lesson/1st-20-syringe-air-spring monthly 0.7 https://mysteamlesson.com/lesson/1st-22-paper-ball-stays-in-a-funnel monthly 0.7 https://mysteamlesson.com/lesson/1st-22-toilet-paper-air-stream monthly 0.7 https://mysteamlesson.com/lesson/1st-22-water-held-by-a-mesh-screen monthly 0.7 https://mysteamlesson.com/lesson/1st-23-coat-hanger-bell-through-string monthly 0.7 https://mysteamlesson.com/lesson/1st-23-rice-jumps-on-a-sound-membrane monthly 0.7 https://mysteamlesson.com/lesson/1st-23-ruler-guitar-pitch monthly 0.7 https://mysteamlesson.com/lesson/1st-25-bottle-balloon-in-hot-and-cold-water monthly 0.7 https://mysteamlesson.com/lesson/1st-25-soap-collapses-a-water-dome monthly 0.7 https://mysteamlesson.com/lesson/1st-25-water-dome-on-a-penny monthly 0.7 https://mysteamlesson.com/lesson/1st-26-magnus-effect-curving-ball monthly 0.7 https://mysteamlesson.com/lesson/1st-26-water-rolls-off-a-waxy-leaf monthly 0.7 https://mysteamlesson.com/lesson/1st-26-wax-paper-drop-race monthly 0.7 https://mysteamlesson.com/lesson/1st-28-cup-telephone-distance-test monthly 0.7 https://mysteamlesson.com/lesson/1st-28-slinky-waves-two-ways monthly 0.7 https://mysteamlesson.com/lesson/1st-28-two-tuning-forks-share-a-note monthly 0.7 https://mysteamlesson.com/lesson/1st-29-ball-and-ring-thermal-expansion monthly 0.7 https://mysteamlesson.com/lesson/1st-29-stirling-engine-runs-from-heat-difference monthly 0.7 https://mysteamlesson.com/lesson/1st-29-thermostat-bimetal-snap monthly 0.7 https://mysteamlesson.com/lesson/1st-31-glow-stick-warm-vs-cold monthly 0.7 https://mysteamlesson.com/lesson/1st-31-memory-foam-temperature-test monthly 0.7 https://mysteamlesson.com/lesson/1st-31-shape-memory-wire-returns monthly 0.7 https://mysteamlesson.com/lesson/1st-32-crossed-polarizers-black-out-an-lcd monthly 0.7 https://mysteamlesson.com/lesson/1st-32-fiber-optic-water-stream monthly 0.7 https://mysteamlesson.com/lesson/1st-32-light-trapped-in-an-acrylic-rod monthly 0.7 https://mysteamlesson.com/lesson/1st-34-convection-spiral-spinner monthly 0.7 https://mysteamlesson.com/lesson/1st-34-ice-melts-faster-on-metal-than-wood monthly 0.7 https://mysteamlesson.com/lesson/1st-34-wax-dots-show-heat-conduction monthly 0.7 https://mysteamlesson.com/lesson/1st-35-brownian-motion-under-a-microscope monthly 0.7 https://mysteamlesson.com/lesson/1st-35-paper-arch-supports-weight monthly 0.7 https://mysteamlesson.com/lesson/1st-35-slime-snaps-fast-flows-slow monthly 0.7 https://mysteamlesson.com/lesson/activity-rigid-heddle-weaving-looms monthly 0.7 https://mysteamlesson.com/lesson/activity-leather-stamping-studio monthly 0.7 https://mysteamlesson.com/lesson/activity-fuse-beads-perler monthly 0.7 https://mysteamlesson.com/lesson/activity-loom-bands monthly 0.7 https://mysteamlesson.com/lesson/activity-snap-circuits-jr monthly 0.7 https://mysteamlesson.com/lesson/activity-kumihimo-braiding-wheels monthly 0.7 https://mysteamlesson.com/lesson/2nd-soup-can-tower monthly 0.7 https://mysteamlesson.com/lesson/2nd-magic-rollback-can monthly 0.7 https://mysteamlesson.com/lesson/2nd-friendship-bracelets monthly 0.7 https://mysteamlesson.com/lesson/2nd-magnus-flyers monthly 0.7 https://mysteamlesson.com/lesson/2nd-zoetrope-animation monthly 0.7 https://mysteamlesson.com/lesson/2nd-gravity-powered-sorting-machine monthly 0.7 https://mysteamlesson.com/lesson/2nd-rubber-band-paddle-boat monthly 0.7 https://mysteamlesson.com/lesson/2nd-materials-engineer-milk-plastic monthly 0.7 https://mysteamlesson.com/lesson/2nd-invent-an-insect monthly 0.7 https://mysteamlesson.com/lesson/2nd-build-a-weather-instrument monthly 0.7 https://mysteamlesson.com/lesson/2nd-straw-rockets monthly 0.7 https://mysteamlesson.com/lesson/2nd-god-s-eye-level-2-six-prong monthly 0.7 https://mysteamlesson.com/lesson/2nd-paint-stick-pom-pom-launcher monthly 0.7 https://mysteamlesson.com/lesson/2nd-windcart-build monthly 0.7 https://mysteamlesson.com/lesson/2nd-balancing-sculpture-level-2 monthly 0.7 https://mysteamlesson.com/lesson/2nd-pulley-crane monthly 0.7 https://mysteamlesson.com/lesson/2nd-build-a-seismograph monthly 0.7 https://mysteamlesson.com/lesson/2nd-scribbling-machines monthly 0.7 https://mysteamlesson.com/lesson/2nd-cardboard-automata monthly 0.7 https://mysteamlesson.com/lesson/2nd-robot-hand monthly 0.7 https://mysteamlesson.com/lesson/2nd-electromagnet-pickup-crane monthly 0.7 https://mysteamlesson.com/lesson/2nd-tilt-switch-light-box monthly 0.7 https://mysteamlesson.com/lesson/2nd-cardboard-pinball-machine monthly 0.7 https://mysteamlesson.com/lesson/activity-plastic-lace-lanyards-boondoggle monthly 0.7 https://mysteamlesson.com/lesson/3rd-mini-breadboards-guided-circuit-exploration monthly 0.7 https://mysteamlesson.com/lesson/3rd-electronics-switches-conductivity-and-light-bulbs monthly 0.7 https://mysteamlesson.com/lesson/3rd-buzz-wire-game monthly 0.7 https://mysteamlesson.com/lesson/3rd-lenz-s-law-magnetic-braking-lesson monthly 0.7 https://mysteamlesson.com/lesson/3rd-build-a-speaker monthly 0.7 https://mysteamlesson.com/lesson/3rd-elephant-toothpaste-special-chemistry-lesson monthly 0.7 https://mysteamlesson.com/lesson/3rd-communicating-vessels-same-water-level monthly 0.7 https://mysteamlesson.com/lesson/3rd-build-a-machine-to-lift-water monthly 0.7 https://mysteamlesson.com/lesson/3rd-water-filter-engineer monthly 0.7 https://mysteamlesson.com/lesson/3rd-pvc-paper-rockets monthly 0.7 https://mysteamlesson.com/lesson/3rd-balloon-hovercraft monthly 0.7 https://mysteamlesson.com/lesson/3rd-mini-rubber-band-car monthly 0.7 https://mysteamlesson.com/lesson/3rd-atmospheric-pressure-cart monthly 0.7 https://mysteamlesson.com/lesson/3rd-levitating-pencil monthly 0.7 https://mysteamlesson.com/lesson/3rd-bridge-engineering-under-constraints monthly 0.7 https://mysteamlesson.com/lesson/3rd-the-great-marble-sorter monthly 0.7 https://mysteamlesson.com/lesson/3rd-hydraulic-claw-lift monthly 0.7 https://mysteamlesson.com/lesson/3rd-pantograph-drawing-machine monthly 0.7 https://mysteamlesson.com/lesson/3rd-god-s-eye-level-3-spiraling-staircase monthly 0.7 https://mysteamlesson.com/lesson/3rd-ultimate-chain-reaction-machine monthly 0.7 https://mysteamlesson.com/lesson/activity-potholder-weaving-studio-metal-looms monthly 0.7 https://mysteamlesson.com/lesson/activity-silk-painting-silk-suncatchers monthly 0.7 https://mysteamlesson.com/lesson/activity-suminagashi-marbling-studio monthly 0.7 https://mysteamlesson.com/lesson/activity-wet-wool-felting-studio monthly 0.7 https://mysteamlesson.com/lesson/activity-hand-papermaking-studio monthly 0.7 https://mysteamlesson.com/lesson/activity-gel-plate-printmaking-studio monthly 0.7 https://mysteamlesson.com/lesson/activity-geoboards monthly 0.7 https://mysteamlesson.com/lesson/activity-code-and-go-robot-mouse-bee-bot monthly 0.7 https://mysteamlesson.com/lesson/activity-origami monthly 0.7 https://mysteamlesson.com/lesson/activity-spirograph-geometric-drawing monthly 0.7 https://mysteamlesson.com/lesson/activity-microscope-specimen-discovery monthly 0.7 https://mysteamlesson.com/lesson/activity-marble-run-ball-track monthly 0.7 https://mysteamlesson.com/lesson/activity-cardboard-loom-weaving monthly 0.7 https://mysteamlesson.com/lesson/activity-wikki-stix-wax-stick-sculpture monthly 0.7 https://mysteamlesson.com/lesson/activity-magnetic-tiles monthly 0.7 https://mysteamlesson.com/lesson/activity-plus-plus-big-construction-pieces monthly 0.7 https://mysteamlesson.com/lesson/activity-keva-kapla-planks monthly 0.7 https://mysteamlesson.com/lesson/activity-lego-brick-challenge-bin monthly 0.7 https://mysteamlesson.com/lesson/activity-model-magic-air-dry-clay-minis monthly 0.7 https://mysteamlesson.com/lesson/activity-pattern-blocks-and-tangram-art monthly 0.7 https://mysteamlesson.com/lesson/activity-scratch-art-etching monthly 0.7 https://mysteamlesson.com/lesson/k-01-magnetic-braking-on-aluminum monthly 0.7 https://mysteamlesson.com/lesson/k-01-magnetized-needle-compass monthly 0.7 https://mysteamlesson.com/lesson/k-01-mystery-black-box-magnet monthly 0.7 https://mysteamlesson.com/lesson/k-02-cloud-in-a-bottle monthly 0.7 https://mysteamlesson.com/lesson/k-02-crushing-can-by-air-pressure monthly 0.7 https://mysteamlesson.com/lesson/k-02-suction-cups-fight-back monthly 0.7 https://mysteamlesson.com/lesson/k-04-chain-fountain monthly 0.7 https://mysteamlesson.com/lesson/k-04-euler-s-disk-wobble monthly 0.7 https://mysteamlesson.com/lesson/k-04-tablecloth-pull monthly 0.7 https://mysteamlesson.com/lesson/k-05-balloon-whistle monthly 0.7 https://mysteamlesson.com/lesson/k-05-pendulum-resonance-push monthly 0.7 https://mysteamlesson.com/lesson/k-05-straw-oboe monthly 0.7 https://mysteamlesson.com/lesson/k-07-air-pressure-bottle-fountain monthly 0.7 https://mysteamlesson.com/lesson/k-07-marshmallow-in-a-vacuum-jar monthly 0.7 https://mysteamlesson.com/lesson/k-07-water-boils-in-a-syringe monthly 0.7 https://mysteamlesson.com/lesson/k-08-rolling-can-mass-race monthly 0.7 https://mysteamlesson.com/lesson/k-08-spool-string-direction-trick monthly 0.7 https://mysteamlesson.com/lesson/k-08-two-ball-super-bounce monthly 0.7 https://mysteamlesson.com/lesson/k-10-arrow-reverses-through-water monthly 0.7 https://mysteamlesson.com/lesson/k-10-disappearing-clear-beads monthly 0.7 https://mysteamlesson.com/lesson/k-10-rainbow-density-column monthly 0.7 https://mysteamlesson.com/lesson/k-11-bubble-film-in-a-cube monthly 0.7 https://mysteamlesson.com/lesson/k-11-bubble-inside-a-bubble monthly 0.7 https://mysteamlesson.com/lesson/k-11-hot-and-cold-water-convection monthly 0.7 https://mysteamlesson.com/lesson/k-13-brachistochrone-ball-race monthly 0.7 https://mysteamlesson.com/lesson/k-13-falling-chimney-paradox monthly 0.7 https://mysteamlesson.com/lesson/k-13-lever-arm-force-difference monthly 0.7 https://mysteamlesson.com/lesson/k-14-polarized-plastic-stress-colors monthly 0.7 https://mysteamlesson.com/lesson/k-14-prism-splits-white-light monthly 0.7 https://mysteamlesson.com/lesson/k-14-sugar-water-rainbow-in-a-straw monthly 0.7 https://mysteamlesson.com/lesson/k-16-leaf-bag-makes-water monthly 0.7 https://mysteamlesson.com/lesson/k-16-paper-flower-blooms-in-water monthly 0.7 https://mysteamlesson.com/lesson/k-16-soap-bubble-on-a-loop-finds-minimum-shape monthly 0.7 https://mysteamlesson.com/lesson/k-17-electromagnet-strength-test monthly 0.7 https://mysteamlesson.com/lesson/k-17-magnetic-braking-pendulum monthly 0.7 https://mysteamlesson.com/lesson/k-17-which-liquids-conduct monthly 0.7 https://mysteamlesson.com/lesson/k-19-clear-water-beads-vanish monthly 0.7 https://mysteamlesson.com/lesson/k-19-iodine-starch-color-switch monthly 0.7 https://mysteamlesson.com/lesson/k-19-mirascope-floating-image monthly 0.7 https://mysteamlesson.com/lesson/k-20-bouncing-water-drop-on-hydrophobic-surface monthly 0.7 https://mysteamlesson.com/lesson/k-20-diaper-polymer-drinks-water monthly 0.7 https://mysteamlesson.com/lesson/k-20-soap-film-minimal-surfaces monthly 0.7 https://mysteamlesson.com/lesson/k-22-chladni-sand-patterns monthly 0.7 https://mysteamlesson.com/lesson/k-22-hydraulic-syringes-multiply-force monthly 0.7 https://mysteamlesson.com/lesson/k-22-singing-aluminum-rod monthly 0.7 https://mysteamlesson.com/lesson/k-23-anamorphic-cylinder-mirror monthly 0.7 https://mysteamlesson.com/lesson/k-23-crookes-radiometer-spins-in-light monthly 0.7 https://mysteamlesson.com/lesson/k-23-moir-motion-patterns monthly 0.7 https://mysteamlesson.com/lesson/k-25-drinking-bird monthly 0.7 https://mysteamlesson.com/lesson/k-25-hot-ice-tower monthly 0.7 https://mysteamlesson.com/lesson/k-25-instant-cold-pack monthly 0.7 https://mysteamlesson.com/lesson/k-26-capillary-tubes-rise-to-different-heights monthly 0.7 https://mysteamlesson.com/lesson/k-26-coin-vortex-in-a-funnel monthly 0.7 https://mysteamlesson.com/lesson/k-26-thread-loop-opens-with-soap monthly 0.7 https://mysteamlesson.com/lesson/k-28-glow-powder-keeps-glowing monthly 0.7 https://mysteamlesson.com/lesson/k-28-tonic-water-glows monthly 0.7 https://mysteamlesson.com/lesson/k-28-uv-beads-change-color monthly 0.7 https://mysteamlesson.com/lesson/k-29-balloon-skewer-trick monthly 0.7 https://mysteamlesson.com/lesson/k-29-instant-snow-polymer monthly 0.7 https://mysteamlesson.com/lesson/k-29-oobleck-solid-or-liquid monthly 0.7 https://mysteamlesson.com/lesson/k-31-bimetal-strip-bends-with-heat monthly 0.7 https://mysteamlesson.com/lesson/k-31-diet-vs-regular-soda-float-test monthly 0.7 https://mysteamlesson.com/lesson/k-31-hot-cold-convection-tank monthly 0.7 https://mysteamlesson.com/lesson/k-32-herons-fountain monthly 0.7 https://mysteamlesson.com/lesson/k-32-marshmallow-in-a-syringe monthly 0.7 https://mysteamlesson.com/lesson/k-32-self-starting-siphon monthly 0.7 https://mysteamlesson.com/lesson/k-34-contact-angle-race monthly 0.7 https://mysteamlesson.com/lesson/k-34-reusable-hand-warmer-crystallizes monthly 0.7 https://mysteamlesson.com/lesson/k-34-rubber-egg monthly 0.7 https://mysteamlesson.com/lesson/k-35-bendy-potato-osmosis monthly 0.7 https://mysteamlesson.com/lesson/k-35-fixed-vs-movable-pulley monthly 0.7 https://mysteamlesson.com/lesson/k-35-vitamin-c-makes-iodine-disappear monthly 0.7 https://mysteamlesson.com/lesson/tk-01-hovering-ring-magnets monthly 0.7 https://mysteamlesson.com/lesson/tk-01-magnet-through-the-table monthly 0.7 https://mysteamlesson.com/lesson/tk-01-magnetic-field-lines-in-a-bag monthly 0.7 https://mysteamlesson.com/lesson/tk-02-blow-between-two-cans monthly 0.7 https://mysteamlesson.com/lesson/tk-02-cartesian-diver monthly 0.7 https://mysteamlesson.com/lesson/tk-02-upside-down-water-cup monthly 0.7 https://mysteamlesson.com/lesson/tk-04-balancing-butterfly monthly 0.7 https://mysteamlesson.com/lesson/tk-04-double-cone-rolls-uphill monthly 0.7 https://mysteamlesson.com/lesson/tk-04-roll-back-can monthly 0.7 https://mysteamlesson.com/lesson/tk-05-compass-follows-a-magnet monthly 0.7 https://mysteamlesson.com/lesson/tk-05-magnet-falls-slowly-through-copper-pipe monthly 0.7 https://mysteamlesson.com/lesson/tk-05-repelling-magnet-car monthly 0.7 https://mysteamlesson.com/lesson/tk-07-blow-over-a-paper-strip monthly 0.7 https://mysteamlesson.com/lesson/tk-07-bottle-holes-stop-when-capped monthly 0.7 https://mysteamlesson.com/lesson/tk-07-straw-holds-water-with-a-finger monthly 0.7 https://mysteamlesson.com/lesson/tk-08-coin-card-cup-trick monthly 0.7 https://mysteamlesson.com/lesson/tk-08-gyroscope-wont-fall monthly 0.7 https://mysteamlesson.com/lesson/tk-08-rattleback-reverses-direction monthly 0.7 https://mysteamlesson.com/lesson/tk-10-balloon-hair-static monthly 0.7 https://mysteamlesson.com/lesson/tk-10-balloon-pulls-a-can monthly 0.7 https://mysteamlesson.com/lesson/tk-10-balloon-wont-inflate-in-sealed-bottle monthly 0.7 https://mysteamlesson.com/lesson/tk-11-coffee-filter-parachute monthly 0.7 https://mysteamlesson.com/lesson/tk-11-ping-pong-ball-in-air-stream monthly 0.7 https://mysteamlesson.com/lesson/tk-11-vortex-cannon-puff monthly 0.7 https://mysteamlesson.com/lesson/tk-13-balancing-forks-on-a-toothpick monthly 0.7 https://mysteamlesson.com/lesson/tk-13-interleaved-books-wont-pull-apart monthly 0.7 https://mysteamlesson.com/lesson/tk-13-pendulum-nose-challenge monthly 0.7 https://mysteamlesson.com/lesson/tk-14-coupled-pendulums monthly 0.7 https://mysteamlesson.com/lesson/tk-14-static-balloon-bends-water monthly 0.7 https://mysteamlesson.com/lesson/tk-14-static-butterfly-wings monthly 0.7 https://mysteamlesson.com/lesson/tk-16-floating-paper-clip monthly 0.7 https://mysteamlesson.com/lesson/tk-16-pepper-runs-from-soap monthly 0.7 https://mysteamlesson.com/lesson/tk-16-walking-water monthly 0.7 https://mysteamlesson.com/lesson/tk-17-ice-fishing-with-salt-and-string monthly 0.7 https://mysteamlesson.com/lesson/tk-17-newtons-cradle monthly 0.7 https://mysteamlesson.com/lesson/tk-17-salt-lifts-an-ice-cube-on-string monthly 0.7 https://mysteamlesson.com/lesson/tk-19-falling-slinky-surprise monthly 0.7 https://mysteamlesson.com/lesson/tk-19-rice-dances-on-a-drum monthly 0.7 https://mysteamlesson.com/lesson/tk-19-spoon-gong monthly 0.7 https://mysteamlesson.com/lesson/tk-20-dry-paper-towel-underwater monthly 0.7 https://mysteamlesson.com/lesson/tk-20-pencils-through-a-water-bag monthly 0.7 https://mysteamlesson.com/lesson/tk-20-soap-powered-paper-fish monthly 0.7 https://mysteamlesson.com/lesson/tk-22-bottle-organ monthly 0.7 https://mysteamlesson.com/lesson/tk-22-skittles-rainbow-ring monthly 0.7 https://mysteamlesson.com/lesson/tk-22-water-drop-magnifier monthly 0.7 https://mysteamlesson.com/lesson/tk-23-straw-flute-pitch monthly 0.7 https://mysteamlesson.com/lesson/tk-23-tuning-fork-makes-water-jump monthly 0.7 https://mysteamlesson.com/lesson/tk-23-water-xylophone monthly 0.7 https://mysteamlesson.com/lesson/tk-25-expanding-straw-wrapper monthly 0.7 https://mysteamlesson.com/lesson/tk-25-oil-and-water-separate monthly 0.7 https://mysteamlesson.com/lesson/tk-25-oil-and-water-lava-lamp monthly 0.7 https://mysteamlesson.com/lesson/tk-26-balloon-rocket monthly 0.7 https://mysteamlesson.com/lesson/tk-26-warm-bottle-balloon-inflation monthly 0.7 https://mysteamlesson.com/lesson/tk-26-water-beads-up-on-wax-paper monthly 0.7 https://mysteamlesson.com/lesson/tk-28-bent-pencil-in-water monthly 0.7 https://mysteamlesson.com/lesson/tk-28-coin-appears-when-water-is-added monthly 0.7 https://mysteamlesson.com/lesson/tk-28-color-climbing-celery monthly 0.7 https://mysteamlesson.com/lesson/tk-29-egg-floats-in-salt-water monthly 0.7 https://mysteamlesson.com/lesson/tk-29-hydrophobic-sand-stays-dry monthly 0.7 https://mysteamlesson.com/lesson/tk-29-soap-powered-paper-boat monthly 0.7 https://mysteamlesson.com/lesson/tk-31-baking-soda-balloon-inflation monthly 0.7 https://mysteamlesson.com/lesson/tk-31-spool-rolls-toward-the-pull monthly 0.7 https://mysteamlesson.com/lesson/tk-31-yeast-balloon-inflation monthly 0.7 https://mysteamlesson.com/lesson/tk-32-cd-rainbow monthly 0.7 https://mysteamlesson.com/lesson/tk-32-m-and-m-color-diffusion monthly 0.7 https://mysteamlesson.com/lesson/tk-32-red-cabbage-color-magic monthly 0.7 https://mysteamlesson.com/lesson/tk-34-dancing-raisins monthly 0.7 https://mysteamlesson.com/lesson/tk-34-dry-erase-drawing-floats monthly 0.7 https://mysteamlesson.com/lesson/tk-34-mystery-orange-peel-on-vs-off monthly 0.7 https://mysteamlesson.com/lesson/tk-35-folded-paper-holds-weight monthly 0.7 https://mysteamlesson.com/lesson/tk-35-hammer-and-ruler-balance monthly 0.7 https://mysteamlesson.com/lesson/tk-35-tornado-in-a-bottle monthly 0.7