Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 733 · 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: water from the oars goes backward. (a) False (b) True
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we change it (c) we measure it
3. 3.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it travels less far (d) it speeds up
4. 4.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
5. 5.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
7. 7.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it can pop loudly (c) it turns into a kite (d) it gets too heavy
8. 8.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) keep them in your mouth (d) throw them away safely
9. 9.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) no change at all (d) more friction, less far
10. 10.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a drinking straw (c) two chairs (d) a long string
12. 12.🧺 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) a balloon
13. 13.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) the balloon (d) gas from the rocket
14. 14.🚀 Which of these goes forward? (a) water from the oars (b) the rowing boat (c) water a swimmer pushes (d) air from the balloon
15. 15.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a magnet (c) vinegar (d) sticky tape
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) a mirror (d) two chairs
17. 17.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a magnet (c) turmeric powder (d) a drinking straw
18. 18.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) sticky tape (c) vinegar (d) two chairs
19. 19.⚖️ 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 tape
20. 20.🚀 Which of these goes forward? (a) the swimmer (b) water from the oars (c) water a swimmer pushes (d) gas from the rocket
21. 21.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a mirror (c) turmeric powder (d) two chairs
22. 22.True or false: water from the oars goes forward. (a) False (b) True
23. 23.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
24. 24.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same straw (c) the slope of the string (d) how big we blow it
26. 26.🎈 When does the balloon rocket stop? (a) when it turns blue (b) it never stops (c) when the air runs out (d) when it gets cold
27. 27.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) sticky tape (c) a balloon (d) a long string
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
29. 29.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
30. 30.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
31. 31.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
32. 32.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a magnet (c) a long string (d) yeast
33. 33.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) keep it away from faces (d) aim it at your friend
34. 34.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the straw is heavy (c) a magnet pulls it (d) the string pulls it
35. 35.⚖️ 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
36. 36.True or false: the swimmer goes forward. (a) False (b) True
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a mirror (c) two chairs (d) a long string
38. 38.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
39. 39.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a drinking straw (c) sticky tape (d) two chairs

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