Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 94 · 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 water from the oars go? (a) goes backward (b) goes forward
2. 2.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
3. 3.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) water a swimmer pushes (d) the rocket
4. 4.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
5. 5.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) the rowing boat (d) gas from the rocket
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) two chairs (d) a battery cell
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a mirror (c) a balloon (d) two chairs
8. 8.True or false: the rocket goes forward. (a) True (b) False
9. 9.True or false: the rowing boat goes backward. (a) True (b) False
10. 10.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) two chairs (c) a drinking straw (d) a balloon
12. 12.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) chew them (c) give them to a baby (d) keep them in your mouth
13. 13.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
14. 14.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a mirror (c) a drinking straw (d) vinegar
15. 15.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a battery cell (c) sticky tape (d) a long string
17. 17.⚖️ 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) False (b) True
18. 18.True or false: the balloon goes backward. (a) False (b) True
19. 19.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
20. 20.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it can pop loudly (d) it gets too heavy
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we change it (c) we keep it the same
22. 22.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
23. 23.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) no change at all (d) it goes faster
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) two chairs (c) a balloon (d) a long string
25. 25.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when the air runs out (c) when it turns blue (d) it never stops
26. 26.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) aim it at your friend (d) keep it away from faces
27. 27.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes less far (c) it goes much farther (d) it flies off the string
28. 28.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
29. 29.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
30. 30.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) air from the balloon (d) the balloon
31. 31.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) a magnet (d) sticky tape
32. 32.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it speeds up (c) it travels farther (d) it goes backward first
33. 33.⚖️ 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
34. 34.⚖️ 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 change it (c) we keep it the same
35. 35.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) the straw is heavy (d) escaping air pushes it
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
37. 37.True or false: water from the oars goes forward. (a) True (b) False
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 balloon rocket (d) a mirror
39. 39.⚖️ 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) the slope of the string (d) how big we blow it
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True

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