Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 106 · 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 what we measure? (a) the same string (b) distance it travels (c) how big we blow it (d) the same tape
2. 2.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when it gets cold (c) it never stops (d) when the air runs out
3. 3.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) aim it at your friend (c) blow it till it bursts (d) put string round a neck
4. 4.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) more friction, less far (d) it goes faster
5. 5.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) turmeric powder (d) a drinking straw
8. 8.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) yeast (c) a magnet (d) a long string
9. 9.⚖️ 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) distance it travels (c) how big we blow it (d) the same tape
10. 10.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it travels farther (c) it goes backward first (d) it speeds up
11. 11.True or false: gas from the rocket goes backward. (a) False (b) True
12. 12.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False
14. 14.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) escaping air pushes it (d) a magnet pulls it
15. 15.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) a balloon (d) vinegar
17. 17.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) give them to a baby (c) chew them (d) keep them in your mouth
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) False (b) True
19. 19.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a magnet (c) a drinking straw (d) two chairs
20. 20.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
21. 21.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a long string (c) sticky tape (d) yeast
22. 22.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a balloon rocket (c) a sundial (d) a fridge magnet
23. 23.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a balloon (c) a battery cell (d) vinegar
24. 24.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) two chairs (c) a balloon (d) a mirror
25. 25.True or false: yeast is needed for the balloon rocket. (a) True (b) False
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a battery cell (c) sticky tape (d) a drinking straw
27. 27.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) turmeric powder (c) yeast (d) sticky tape
28. 28.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a drinking straw (d) yeast
30. 30.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
31. 31.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a battery cell (c) a balloon (d) two chairs
32. 32.🚀 Which of these goes forward? (a) the rocket (b) air from the balloon (c) water a swimmer pushes (d) water from the oars
33. 33.⚖️ 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 slope of the string
34. 34.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
35. 35.True or false: the balloon goes forward. (a) True (b) False
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same string (c) how big we blow it
37. 37.True or false: air from the balloon goes backward. (a) False (b) True
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we change it (c) we keep it the same
39. 39.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it turns into a kite (d) it can pop loudly
40. 40.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed

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