Walder Science in dedicated to providing robust STEM resources to help children experience exciting science and math enrichment right from home. Visit us each week to participate in short, engaging video lessons designed by credentialed educators. Activities are recommended for grades 1 – 6, but can be enjoyed by all ages! Please note that experiments should only be attempted under adult supervision.
Raffle: Enter our weekly raffle by submitting a picture or a video replicating an experiment or answering the challenge question at the end of a video lesson or the accompanying handout. Earn an additional raffle ticket for every submission, with prizes ranging from gift cards to STEM kits! Click here to submit your raffle entry.
Week of April 3
Rectangle Lines
Limiting Oxygen In Combustion
Surface Area and Combustion
Week of March 27
Grid Travel Distance
Light Travels Straight Lines
Week of March 20
Bubble Maker
Internal Reflections
Week of March 13
3X3 Grid
Penny in a Balloon
STEM Card Challenge
Week of March 6
Baking Soda and Vinegar
Ellipse
Snowflakes
Water Rocket
Week of February 27
3 Line Intersections
Bernoillis Magnus Effect Glider
Week of February 20
Rice Friction
Buoyancy
Week of February 13
Rocket Balloons
Bending Water
32 oz Into 1 oz Cups
Week of February 6
Coral Science
Count by 123
Bernoulli's Principle
Attached Books
Week of January 30
Math Riddle
Sponges
Parachute
Pepper Dispersion
Week of January 16
Math Number Pattern
Math Cubes to Squares
Paper Bridge Challenge
Arrow Changes Direction
Week of January 9
Math Repeated Addition
Water Tension
Density Stacker
Floating Paper Clip Surface Tension
Week of January 2
Math Place Value Rounding
Splash of Colors
Air Pressure
Week of December 26
Triangle Types
Melting Ice
Lava Lamp
Dollar Bill Inertia
Week of December 19
Mixing Colors
Kraft Stick Kazoo
Math Riddle: Four Friends