Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 957 · 40 questions

What you do (Push back, move forward): 1. Thread the string through the straw and tie it tightly between two chairs. 2. Blow up the balloon (not too much) and pinch its neck shut. 3. Tape the balloon to the straw, neck pointing backward. 4. Let go, measure how far it goes, and keep it away from faces.

1. 1.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) how big we blow it (c) distance it travels (d) the slope of the string
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
3. 3.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
4. 4.True or false: the rowing boat goes backward. (a) False (b) True
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the same tape
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we keep it the same (c) we change it
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we measure it (c) we keep it the same
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a balloon (d) yeast
9. 9.True or false: the swimmer goes backward. (a) True (b) False
10. 10.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it goes backward first (d) it travels less far
11. 11.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it changes colour (c) it can pop loudly (d) it gets too heavy
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) False (b) True
13. 13.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) chew them (c) keep them in your mouth (d) throw them away safely
14. 14.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the swimmer (c) gas from the rocket (d) air from the balloon
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same straw (b) how big we blow it (c) distance it travels
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a drinking straw (d) vinegar
17. 17.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) it goes faster (d) more friction, less far
18. 18.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it goes less far (d) it turns into a kite
19. 19.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a long string (c) a balloon (d) sticky tape
21. 21.True or false: the rowing boat goes forward. (a) False (b) True
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) a battery cell (d) sticky tape
23. 23.True or false: the balloon goes backward. (a) True (b) False
24. 24.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
25. 25.True or false: yeast is needed for the balloon rocket. (a) False (b) True
26. 26.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) backward (d) forward
27. 27.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False
29. 29.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a sundial (d) a balloon rocket
30. 30.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when the air runs out (c) it never stops (d) when it turns blue
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) False (b) True
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
33. 33.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
34. 34.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
35. 35.True or false: the swimmer goes forward. (a) True (b) False
36. 36.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it guides the balloon (d) it blows air in
37. 37.True or false: the rocket goes backward. (a) True (b) False
38. 38.True or false: a long string is needed for the balloon rocket. (a) False (b) True
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
40. 40.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed

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