Walder Science

Weekly STEM Home Learning


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.

Weekly STEM will be taking a break for Passover. We will resume posting new videos every Monday starting April 12. 

Week of March 22 - Weekly Learning Resources

Pushing Water with Air Pressure 


Balanace & Broom Balancing Solution

Riddle: Letter Equations

Week of March 15 - Weekly Learning Resources

Math Riddle: Letters A-D

Mystery of the Balancing Broom


Balloon and Alkaseltzer Tablet

Sound Waves

Week of March 8 - Weekly Learning Resources

Air Pressure Squeeze



Mystery of the Ball Drop

Math Riddle: Pattern

Water on the Moon

Water on the Moon Handout

Week of March 1, 2021 - Weekly Learning Resources

Riddle: Guess Four

Spinning Cup

Moon Movements

Mystery of the Tempurature Drop

Week of February 22, 2021 -  Weekly Learning Resources

Heat Transfer with Ice

Crushed Soda Can 

Challenge Questions

Riddle: Four Friends

Spiral Galaxies

Handout and a Challenge Question

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