Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 822 · 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.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it speeds up (d) it travels farther
2. 2.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
3. 3.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) a mirror (c) vinegar (d) a magnet
4. 4.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
5. 5.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) the rowing boat (d) gas from the rocket
6. 6.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
7. 7.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) sticky tape (c) a drinking straw (d) a magnet
8. 8.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
9. 9.True or false: the rocket goes backward. (a) False (b) True
10. 10.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
11. 11.🚀 Which of these goes forward? (a) the balloon (b) gas from the rocket (c) water from the oars (d) air from the balloon
12. 12.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
13. 13.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
14. 14.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
15. 15.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) yeast (d) a drinking straw
17. 17.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) the straw is heavy (d) escaping air pushes it
18. 18.True or false: the balloon goes forward. (a) False (b) True
19. 19.⚖️ 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 straw (c) how big we blow it
20. 20.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
21. 21.🎈 When does the balloon rocket stop? (a) when the air runs out (b) it never stops (c) when it gets cold (d) when it turns blue
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
23. 23.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
24. 24.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
25. 25.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) it goes faster (d) no change at all
26. 26.⚖️ 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) distance it travels (c) the same string (d) the slope of the string
27. 27.True or false: the balloon goes backward. (a) False (b) True
28. 28.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) forward (d) backward
29. 29.🛟 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
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a long string (c) sticky tape (d) turmeric powder
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we change it (c) we keep it the same
32. 32.⚖️ 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
33. 33.🚀 Which of these goes forward? (a) water from the oars (b) the swimmer (c) water a swimmer pushes (d) gas from the rocket
34. 34.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
35. 35.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) keep it away from faces (c) blow it till it bursts (d) put string round a neck
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) False (b) True
37. 37.⚖️ 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
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we measure it (c) we change it
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) the slope of the string (c) the same tape (d) how big we blow it
40. 40.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed

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