Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 852 · 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.True or false: the balloon goes backward. (a) True (b) False
2. 2.🚀 Which of these goes forward? (a) water from the oars (b) the balloon (c) gas from the rocket (d) water a swimmer pushes
3. 3.🔮 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
4. 4.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
5. 5.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we keep it the same (c) we measure it
7. 7.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
8. 8.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a balloon (c) a mirror (d) turmeric powder
9. 9.📘 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
10. 10.True or false: gas from the rocket goes backward. (a) False (b) True
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) sticky tape (d) a mirror
12. 12.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it speeds up (c) it travels farther (d) it travels less far
13. 13.⚖️ 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
14. 14.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) the balloon (d) water from the oars
15. 15.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
16. 16.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
17. 17.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) forward (d) straight down
18. 18.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) a long string (c) two chairs (d) sticky tape
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) two chairs (d) vinegar
20. 20.⚖️ 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
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
22. 22.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) a long string (d) a magnet
23. 23.🧺 Which of these is not needed for the balloon rocket? (a) turmeric powder (b) a balloon (c) two chairs (d) a drinking straw
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) distance it travels (c) the same string (d) how big we blow it
25. 25.⚖️ 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 keep it the same (c) we change it
26. 26.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) put string round a neck (c) keep it away from faces (d) blow it till it bursts
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we measure it (c) we change it
28. 28.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when it gets cold (c) when the air runs out (d) it never stops
29. 29.⚖️ 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
30. 30.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
31. 31.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) escaping air pushes it (d) a magnet pulls it
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a long string (d) a battery cell
33. 33.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
34. 34.True or false: a long string is needed for the balloon rocket. (a) True (b) False
35. 35.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it changes colour (c) it gets too heavy (d) it can pop loudly
36. 36.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
37. 37.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a long string (c) yeast (d) turmeric powder
38. 38.🚀 Which of these goes forward? (a) air from the balloon (b) the rowing boat (c) water a swimmer pushes (d) water from the oars
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a magnet (c) sticky tape (d) two chairs
40. 40.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed

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