Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 804 · 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: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) more friction, less far (d) no change at all
2. 2.🚀 Which of these goes forward? (a) air from the balloon (b) the swimmer (c) water a swimmer pushes (d) gas from the rocket
3. 3.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
4. 4.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it goes backward first (d) it travels farther
5. 5.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) False (b) True
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
8. 8.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it can pop loudly (d) it turns into a kite
9. 9.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
10. 10.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water a swimmer pushes (d) the balloon
11. 11.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) when the air runs out (d) it never stops
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) vinegar (c) a long string (d) two chairs
13. 13.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) aim it at your friend (d) keep it away from faces
14. 14.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) turmeric powder (c) yeast (d) a magnet
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) sticky tape (c) a balloon (d) turmeric powder
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
17. 17.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a drinking straw (c) yeast (d) vinegar
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we keep it the same (c) we measure it
19. 19.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
20. 20.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a long string (c) a mirror (d) a magnet
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) a battery cell (d) sticky tape
22. 22.⚖️ 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
23. 23.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
24. 24.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
25. 25.⚖️ 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
26. 26.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
28. 28.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) it stays still (c) backward (d) forward
29. 29.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
30. 30.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
31. 31.True or false: air from the balloon goes backward. (a) False (b) True
32. 32.True or false: water from the oars goes forward. (a) True (b) False
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) turmeric powder (d) a long string
34. 34.True or false: water from the oars goes backward. (a) True (b) False
35. 35.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
37. 37.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the string pulls it (c) the straw is heavy (d) a magnet pulls it
38. 38.True or false: two chairs is not 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 kept the same? (a) how big we blow it (b) the same string (c) distance it travels
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we measure it (c) we keep it the same

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