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Thinking sheet · Math and science
Heavier or Lighter?
Predict which object is heavier, then test with your hands or a balance scale and record what really happened.
- Grades
- K–3
- Time
- about 20 minutes
- Topic
- Math and science
- Kids practice
- measurement, comparing weight, predicting
What kids do
“Guess first, then test! Which one is heavier?”
- Predict, then test
- Draw a balance with the heavier thing down
- Big things are always heavier. True? Why?
How to run it
- A hanger with two cups on strings makes a quick balance.
- Write the guess before testing, no changes allowed!
- Find a big light thing and a small heavy thing.
Talk about it
- Were any guesses wrong? Why?
- How could you compare without a scale?
- What’s the heaviest thing you can lift?
Take it further
Line up five objects from lightest to heaviest.
Pairs well with
Free for home and classroom use. Print as many copies as you need.
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