Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 659 · 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.🛟 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
2. 2.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it turns blue (c) when it gets cold (d) it never stops
3. 3.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) yeast (c) turmeric powder (d) a balloon
4. 4.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) the rocket (d) air from the balloon
5. 5.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a sundial (c) a fridge magnet (d) a mirror
6. 6.True or false: the swimmer goes backward. (a) True (b) False
7. 7.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
8. 8.⚖️ 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 same string
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we keep it the same (c) we change it
10. 10.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
11. 11.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
12. 12.⚖️ 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) the slope of the string (d) distance it travels
13. 13.🛟 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
14. 14.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) it goes faster (d) more friction, less far
15. 15.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
16. 16.⚖️ 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
17. 17.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes less far (c) it flies off the string (d) it goes much farther
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we keep it the same (c) we measure it
19. 19.True or false: the rocket goes backward. (a) True (b) False
20. 20.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
21. 21.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a magnet (c) turmeric powder (d) a long string
22. 22.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
23. 23.🎈 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
24. 24.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a battery cell (c) a long string (d) a balloon
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) turmeric powder (d) a drinking straw
27. 27.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the balloon (c) the rowing boat (d) the rocket
28. 28.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
29. 29.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) turmeric powder (c) sticky tape (d) yeast
30. 30.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) keep it away from faces (c) put string round a neck (d) blow it till it bursts
31. 31.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a magnet (c) sticky tape (d) a drinking straw
32. 32.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it speeds up (c) it travels farther (d) it travels less far
33. 33.🚀 Which of these goes forward? (a) the balloon (b) water from the oars (c) gas from the rocket (d) water a swimmer pushes
34. 34.True or false: the swimmer goes forward. (a) False (b) True
35. 35.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
36. 36.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) the swimmer (d) water from the oars
37. 37.⚖️ 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
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) a magnet (d) a drinking straw
39. 39.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
40. 40.True or false: a long string is not needed for the balloon rocket. (a) True (b) False

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