Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 645 · 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.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a magnet (c) a mirror (d) a drinking straw
2. 2.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
3. 3.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a balloon rocket (c) a mirror (d) a fridge magnet
4. 4.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it can pop loudly (d) it turns into a kite
5. 5.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) a magnet (d) sticky tape
6. 6.⚖️ 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) the slope of the string (c) distance it travels
7. 7.⚖️ 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
8. 8.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) a mirror (c) a magnet (d) yeast
9. 9.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) keep it away from faces (d) put string round a neck
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) vinegar (d) a drinking straw
11. 11.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) escaping air pushes it (d) the straw is heavy
12. 12.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) a magnet (c) a mirror (d) vinegar
13. 13.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) the same straw (c) how big we blow it (d) the same tape
15. 15.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
16. 16.True or false: the rocket goes forward. (a) True (b) False
17. 17.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) sticky tape (c) a long string (d) a drinking straw
18. 18.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
19. 19.⚖️ 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
20. 20.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
21. 21.🚀 Which of these goes backward? (a) the rocket (b) the balloon (c) air from the balloon (d) the swimmer
22. 22.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
23. 23.🎈 When does the balloon rocket stop? (a) when it turns blue (b) it never stops (c) when it gets cold (d) when the air runs out
24. 24.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it flies off the string (c) it goes less far (d) it goes much farther
25. 25.True or false: the rowing boat goes forward. (a) False (b) True
26. 26.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the rowing boat (c) gas from the rocket (d) water from the oars
27. 27.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
28. 28.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we measure it (c) we change it
30. 30.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) two chairs (c) a battery cell (d) vinegar
31. 31.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
32. 32.⚖️ 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
33. 33.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
34. 34.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
35. 35.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
36. 36.🔮 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
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) the same string (c) the slope of the string (d) distance it travels
38. 38.True or false: gas from the rocket goes backward. (a) False (b) True
39. 39.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a long string (c) a drinking straw (d) a balloon

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