Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 429 · 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 goes backward? (a) the swimmer (b) the rocket (c) the rowing boat (d) air from the balloon
2. 2.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we measure it (c) we change it
4. 4.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it travels less far (d) it speeds up
5. 5.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
6. 6.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes less far (c) it turns into a kite (d) it goes much farther
7. 7.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a balloon (d) a magnet
9. 9.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) put string round a neck (c) aim it at your friend (d) blow it till it bursts
10. 10.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
11. 11.True or false: water from the oars goes backward. (a) False (b) True
12. 12.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
13. 13.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it can pop loudly (c) it changes colour (d) it gets too heavy
14. 14.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
15. 15.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
16. 16.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
17. 17.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) vinegar (c) yeast (d) a long string
18. 18.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) no change at all (d) more friction, less far
19. 19.⚖️ 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) True (b) False
20. 20.⚖️ 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
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
22. 22.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) chew them (c) keep them in your mouth (d) throw them away safely
23. 23.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) vinegar (c) a balloon (d) a magnet
24. 24.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) backward (c) it stays still (d) forward
25. 25.🎈 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
26. 26.🚀 Which of these goes forward? (a) the rocket (b) water from the oars (c) gas from the rocket (d) air from the balloon
27. 27.🧺 Which of these is not needed for the balloon rocket? (a) turmeric powder (b) a balloon (c) sticky tape (d) a long string
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) True (b) False
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) vinegar (d) a long string
30. 30.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) turmeric powder (d) two chairs
32. 32.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it holds water (c) it blows air in (d) it makes it heavier
33. 33.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
34. 34.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a balloon rocket (c) a fridge magnet (d) a sundial
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a balloon (c) a long string (d) two chairs
36. 36.🚀 Which of these goes forward? (a) the rowing boat (b) gas from the rocket (c) air from the balloon (d) water from the oars
37. 37.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
38. 38.True or false: a long string is needed for the balloon rocket. (a) False (b) True
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) how big we blow it (c) distance it travels (d) the same straw
40. 40.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False

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