First, our class did an experiment to see what would melt ice the quickest, water, salt, or baking soda.
While we waited we worked as a team to melt an ice cube using our hands.
It was a little messy, but lots of fun 🙂
Ms. Pjura forgot the ice for our science experiment today so we did “Fun STEM Friday” on Thursday 🙂 Challenge: Build the tallest, free-standing, structure using only the materials provided. Materials: 100 toothpicks and half a bag of mini marshmallows. Results: The tallest structure was built by the blue team, standing at 5 inches tall. Continue reading →
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We learned about pH levels and conducted an experiment to find out which liquids are acids and which are bases. We used cabbage juice as our indicator. The liquids we tested were: milk, water, soapy water, baking soda in water, lemon juice, orange juice, and vinegar.
Here’s a picture of the results:
From left to right: soapy water, orange juice, milk, lemon juice, water, baking soda and water, vinegar.
The acids turned a pink/red color (orange juice, lemon juice, vinegar)
The bases turned a blue color (soapy water, milk, baking soda and water)
And water is neutral (it didn’t really change color).
The cup stacking and unstacking masters! I couldn’t believe how fast they unstacked them. I made them do it again so I could record it 🙂
Challenge: Create a tool, using the materials provided, that will allow your team to stack and unstack six cups. Materials: Five pieces of yarn and one rubber band Rules: Only the tool can touch the cups. Hands can only touch the yarn.
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Read by Lydia, Maya, and Benson
Read by Diane and Emma