Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 910 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) sticky tape (d) a magnet
2. 2.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the swimmer (c) the rocket (d) the balloon
3. 3.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) a long string (c) two chairs (d) a balloon
4. 4.True or false: water a swimmer pushes goes forward. (a) True (b) False
5. 5.⚖️ 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 keep it the same (c) we change it
6. 6.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it turns into a kite (d) it can pop loudly
7. 7.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
8. 8.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
9. 9.True or false: the balloon goes backward. (a) True (b) False
10. 10.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) it goes faster (c) less friction (d) no change at all
11. 11.🎈 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
12. 12.⚖️ 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) distance it travels (c) the same straw
13. 13.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a fridge magnet (c) a mirror (d) a sundial
14. 14.⚖️ 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
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) a balloon (d) a battery cell
16. 16.🛟 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
17. 17.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
18. 18.🚀 Which of these goes backward? (a) the balloon (b) air from the balloon (c) the rocket (d) the rowing boat
19. 19.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the rowing boat (c) air from the balloon (d) gas from the rocket
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a mirror (c) two chairs (d) sticky tape
21. 21.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
22. 22.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False
24. 24.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
25. 25.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
26. 26.⚖️ 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
27. 27.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
28. 28.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) vinegar (d) sticky tape
29. 29.⚖️ 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 same string (c) the same tape (d) how big we blow it
30. 30.🚀 Which of these goes forward? (a) the balloon (b) water a swimmer pushes (c) gas from the rocket (d) air from the balloon
31. 31.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
32. 32.⚖️ 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
33. 33.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) two chairs (c) yeast (d) sticky tape
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
35. 35.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
36. 36.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) the string pulls it (c) a magnet pulls it (d) escaping air pushes it
37. 37.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
38. 38.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it travels less far (d) it goes backward first
39. 39.True or false: water from the oars goes backward. (a) False (b) True
40. 40.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True

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