Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 128 · 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.True or false: air from the balloon goes backward. (a) True (b) False
2. 2.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a battery cell (c) turmeric powder (d) sticky tape
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) True (b) False
4. 4.True or false: the rowing boat goes forward. (a) False (b) True
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we measure it (c) we keep it the same
6. 6.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) straight down (c) it stays still (d) backward
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we measure it (c) we change it
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
9. 9.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
10. 10.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) throw them away safely (c) chew them (d) keep them in your mouth
11. 11.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) two chairs (c) a balloon (d) sticky tape
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) False (b) True
13. 13.True or false: water from the oars goes backward. (a) True (b) False
14. 14.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) two chairs (c) a balloon (d) a battery cell
15. 15.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) water from the oars (d) the rowing boat
16. 16.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it changes colour (c) it turns into a kite (d) it gets too heavy
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) a balloon (d) a mirror
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) a balloon (d) a magnet
19. 19.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
20. 20.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) the string pulls it (c) a magnet pulls it (d) escaping air pushes it
21. 21.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
22. 22.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
24. 24.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same tape (c) the same straw (d) distance it travels
26. 26.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
27. 27.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
28. 28.True or false: the swimmer goes backward. (a) False (b) True
29. 29.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) yeast (d) sticky tape
30. 30.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
31. 31.True or false: water a swimmer pushes goes forward. (a) True (b) False
32. 32.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) more friction, less far (d) no change at all
33. 33.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we measure it (c) we change it
35. 35.🎈 When does the balloon rocket stop? (a) when the air runs out (b) it never stops (c) when it gets cold (d) when it turns blue
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) the same tape (c) distance it travels (d) the same string
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) yeast (c) a balloon (d) a drinking straw
39. 39.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) aim it at your friend (d) blow it till it bursts
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) how big we blow it (b) distance it travels (c) the same straw

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