Lesson library
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115 lessons
Homopolar Motor
1st Grade · 1 meeting
Invisible Highlighter Ink Under UV
1st Grade · 1 meeting
Broom Finds Its Balance Point
1st Grade · 1 meeting
Speaker Becomes a Microphone
1st Grade · 1 meeting
Jello Light Pipe
1st Grade · 1 meeting
Popper Toy Jumps After a Delay
1st Grade · 1 meeting
Lemon Battery
1st Grade · 1 meeting
Pinhole Camera Image
1st Grade · 1 meeting
Bicycle Wheel Gyroscope
1st Grade · 1 meeting
Persistence-of-Vision LED Wand
1st Grade · 1 meeting
Blind-Spot Disappearing Dot
1st Grade · 1 meeting
Magnetic-Levitation Spinning Top
1st Grade · 1 meeting
Diffraction-Grating Rainbow
1st Grade · 1 meeting
Magdeburg Suction Discs
1st Grade · 1 meeting
Paper Ball Stays in a Funnel
1st Grade · 1 meeting
Ruler Guitar Pitch
1st Grade · 1 meeting
Bottle Balloon in Hot and Cold Water
1st Grade · 1 meeting
Magnus Effect Curving Ball
1st Grade · 1 meeting
Two Tuning Forks Share a Note
1st Grade · 1 meeting
Stirling Engine Runs from Heat Difference
1st Grade · 1 meeting
Glow Stick Warm vs Cold
1st Grade · 1 meeting
Fiber-Optic Water Stream
1st Grade · 1 meeting
Ice Melts Faster on Metal Than Wood
1st Grade · 1 meeting
Slime Snaps Fast, Flows Slow
1st Grade · 1 meeting
Soup Can Tower
2nd Grade · 1 meetings
Magic Rollback Can
2nd Grade · 1 meetings
Friendship Bracelets
2nd Grade · 1 meetings
Magnus Flyers
2nd Grade · 1 meetings
Zoetrope Animation
2nd Grade · 1 meetings
Gravity-Powered Sorting Machine
2nd Grade · 2 meetings
Rubber-Band Paddle Boat
2nd Grade · 1 meetings
Materials Engineer: Milk Plastic
2nd Grade · 1 meetings
Invent an Insect
2nd Grade · 1 meetings
Build a Weather Instrument
2nd Grade · 2 meetings
Straw Rockets
2nd Grade · 1 meetings
God's Eye Level 2 — Six-Prong
2nd Grade · 1 meetings
Paint-Stick Pom-Pom Launcher
2nd Grade · 1 meetings
Windcart Build
2nd Grade · 2 meetings
Balancing Sculpture Level 2
2nd Grade · 1 meetings
Pulley Crane
2nd Grade · 2 meetings
Build a Seismograph
2nd Grade · 2 meetings
Scribbling Machines
2nd Grade · 1 meetings
Cardboard Automata
2nd Grade · 2 meetings
Robot Hand
2nd Grade · 2 meetings
Electromagnet Pickup Crane
2nd Grade · 2 meetings
Tilt-Switch Light Box
2nd Grade · 2 meetings
Cardboard Pinball Machine
2nd Grade · 3 meetings
Mini Breadboards — Guided Circuit Exploration
3rd Grade · 1 meetings
Electronics: Switches, Conductivity & Light Bulbs
3rd Grade · 2 meetings
Buzz Wire Game
3rd Grade · 2 meetings
Lenz's Law — Magnetic Braking Lesson
3rd Grade · 1 meetings
Build a Speaker
3rd Grade · 2 meetings
Elephant Toothpaste — Special Chemistry Lesson
3rd Grade · 1 meetings
Communicating Vessels — Same Water Level
3rd Grade · 1 meetings
Build a Machine to Lift Water
3rd Grade · 2 meetings
Water-Filter Engineer
3rd Grade · 2 meetings
PVC Paper Rockets
3rd Grade · 2 meetings
Balloon Hovercraft
3rd Grade · 1 meetings
Mini Rubber-Band Car
3rd Grade · 1 meetings
Atmospheric-Pressure Cart
3rd Grade · 2 meetings
Levitating Pencil
3rd Grade · 2 meetings
Bridge Engineering Under Constraints
3rd Grade · 2 meetings
The Great Marble Sorter
3rd Grade · 2 meetings
Hydraulic Claw / Lift
3rd Grade · 3 meetings
Pantograph Drawing Machine
3rd Grade · 2 meetings
God's Eye Level 3 — Spiraling Staircase
3rd Grade · 2 meetings
Ultimate Chain-Reaction Machine
3rd Grade · 3 meetings
Magnetic Braking on Aluminum
Kindergarten · 1 meeting
Suction Cups Fight Back
Kindergarten · 1 meeting
Euler's Disk Wobble
Kindergarten · 1 meeting
Straw Oboe
Kindergarten · 1 meeting
Water Boils in a Syringe
Kindergarten · 1 meeting
Two-Ball Super Bounce
Kindergarten · 1 meeting
Rainbow Density Column
Kindergarten · 1 meeting
Hot and Cold Water Convection
Kindergarten · 1 meeting
Lever Arm Force Difference
Kindergarten · 1 meeting
Prism Splits White Light
Kindergarten · 1 meeting
Leaf Bag Makes Water
Kindergarten · 1 meeting
Magnetic Braking Pendulum
Kindergarten · 1 meeting
Clear Water Beads 'Vanish'
Kindergarten · 1 meeting
Bouncing Water Drop on Hydrophobic Surface
Kindergarten · 1 meeting
Singing Aluminum Rod
Kindergarten · 1 meeting
Moiré Motion Patterns
Kindergarten · 1 meeting
Drinking Bird
Kindergarten · 1 meeting
Coin Vortex in a Funnel
Kindergarten · 1 meeting
UV Beads Change Color
Kindergarten · 1 meeting
Oobleck: Solid or Liquid?
Kindergarten · 1 meeting
Diet vs Regular Soda Float Test
Kindergarten · 1 meeting
Marshmallow in a Syringe
Kindergarten · 1 meeting
Rubber Egg
Kindergarten · 1 meeting
Vitamin C Makes Iodine Disappear
Kindergarten · 1 meeting
Magnet Through the Table
TK · 1 meeting
Upside-Down Water Cup
TK · 1 meeting
Roll-Back Can
TK · 1 meeting
Compass Follows a Magnet
TK · 1 meeting
Bottle Holes Stop When Capped
TK · 1 meeting
Coin-Card-Cup Trick
TK · 1 meeting
Balloon Hair Static
TK · 1 meeting
Ping-Pong Ball in Air Stream
TK · 1 meeting
Balancing Forks on a Toothpick
TK · 1 meeting
Coupled Pendulums
TK · 1 meeting
Pepper Runs from Soap
TK · 1 meeting
Ice Fishing with Salt and String
TK · 1 meeting
Falling Slinky Surprise
TK · 1 meeting
Soap-Powered Paper Fish
TK · 1 meeting
Bottle Organ
TK · 1 meeting
Straw Flute Pitch
TK · 1 meeting
Expanding Straw Wrapper
TK · 1 meeting
Balloon Rocket
TK · 1 meeting
Color-Climbing Celery
TK · 1 meeting
Egg Floats in Salt Water
TK · 1 meeting
Baking-Soda Balloon Inflation
TK · 1 meeting
CD Rainbow
TK · 1 meeting
Dancing Raisins
TK · 1 meeting
Hammer-and-Ruler Balance
TK · 1 meeting