Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 9 · 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.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
2. 2.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
3. 3.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) put string round a neck (d) keep it away from faces
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a long string (d) turmeric powder
5. 5.⚖️ 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 string
6. 6.True or false: the swimmer goes backward. (a) True (b) False
7. 7.⚖️ 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
8. 8.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) give them to a baby (d) keep them in your mouth
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we change it (c) we keep it the same
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) how big we blow it (c) distance it travels (d) the same tape
11. 11.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
12. 12.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
13. 13.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
14. 14.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) the balloon (d) water from the oars
15. 15.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it blows air in (c) it holds water (d) it makes it heavier
16. 16.⚖️ 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 measure it (c) we change it
17. 17.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) vinegar (c) yeast (d) a battery cell
18. 18.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
19. 19.True or false: a long string is needed for the balloon rocket. (a) False (b) True
20. 20.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it can pop loudly (d) it turns into a kite
21. 21.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) turmeric powder (c) a long string (d) a battery cell
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) two chairs (d) a magnet
23. 23.True or false: the rowing boat goes forward. (a) False (b) True
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) a balloon (d) a mirror
25. 25.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) the balloon (d) air from the balloon
26. 26.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) turmeric powder (c) vinegar (d) a balloon
27. 27.⚖️ 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 change it (c) we measure it
28. 28.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it goes backward first (c) it travels farther (d) it speeds up
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) True (b) False
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a battery cell (c) sticky tape (d) a drinking straw
31. 31.True or false: the rowing boat goes backward. (a) False (b) True
32. 32.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
33. 33.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) escaping air pushes it (c) a magnet pulls it (d) the string pulls it
34. 34.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) more friction, less far (d) less friction
35. 35.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
36. 36.True or false: water from the oars goes backward. (a) True (b) False
37. 37.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it flies off the string (d) it goes less far
38. 38.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a sundial (d) a balloon rocket
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we keep it the same (c) we change it
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True

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