Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 432 · 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? What do we do with “how big we blow it”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) the same straw (c) how big we blow it (d) distance it travels
3. 3.🚀 Which of these goes backward? (a) water from the oars (b) the rocket (c) the balloon (d) the rowing boat
4. 4.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a magnet (c) a drinking straw (d) a battery cell
5. 5.True or false: gas from the rocket goes backward. (a) True (b) False
6. 6.True or false: water from the oars goes forward. (a) True (b) False
7. 7.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) the balloon (d) gas from the rocket
8. 8.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
9. 9.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) it never stops (d) when the air runs out
10. 10.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) yeast (d) sticky tape
12. 12.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
13. 13.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it changes colour (d) it turns into a kite
14. 14.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) throw them away safely (c) give them to a baby (d) chew them
15. 15.True or false: water a swimmer pushes goes forward. (a) True (b) False
16. 16.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
17. 17.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) a mirror (c) turmeric powder (d) a magnet
18. 18.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
19. 19.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) put string round a neck (c) keep it away from faces (d) blow it till it bursts
20. 20.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) gas from the rocket (d) the swimmer
21. 21.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it travels less far (c) it speeds up (d) it goes backward first
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) the slope of the string (c) how big we blow it (d) the same tape
23. 23.True or false: water from the oars goes backward. (a) False (b) True
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we keep it the same (c) we measure it
25. 25.True or false: the swimmer goes forward. (a) False (b) True
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a balloon (c) a long string (d) sticky tape
27. 27.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) more friction, less far (d) no change at all
28. 28.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a drinking straw (c) a magnet (d) a long string
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) vinegar (d) a long string
30. 30.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
31. 31.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
32. 32.🚀 Which of these goes forward? (a) gas from the rocket (b) the rowing boat (c) water a swimmer pushes (d) water from the oars
33. 33.True or false: the balloon goes forward. (a) False (b) True
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) False (b) True
35. 35.True or false: gas from the rocket goes forward. (a) False (b) True
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we measure it (c) we keep it the same
37. 37.True or false: the swimmer goes backward. (a) False (b) True
38. 38.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a sundial (c) a mirror (d) a balloon rocket
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) True (b) False
40. 40.True or false: two chairs is needed for the balloon rocket. (a) True (b) False

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