Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 851 · 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.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it gets too heavy (d) it can pop loudly
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) yeast (c) a balloon (d) sticky tape
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we keep it the same (c) we measure it
4. 4.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
5. 5.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
6. 6.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
7. 7.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
8. 8.⚖️ 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) how big we blow it (d) the same string
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a mirror (c) sticky tape (d) two chairs
10. 10.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) put string round a neck (c) blow it till it bursts (d) keep it away from faces
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we keep it the same (c) we change it
12. 12.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) yeast (c) a balloon (d) a drinking straw
13. 13.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
14. 14.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
15. 15.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) chew them (c) give them to a baby (d) throw them away safely
16. 16.🔮 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
17. 17.True or false: water from the oars goes forward. (a) True (b) False
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the same string
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we change it (c) we measure it
20. 20.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a balloon (c) vinegar (d) a battery cell
21. 21.True or false: the swimmer goes backward. (a) True (b) False
22. 22.True or false: the rocket goes backward. (a) False (b) True
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) a battery cell (d) a balloon
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) vinegar (c) a drinking straw (d) a balloon
25. 25.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) yeast (c) a drinking straw (d) a battery cell
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) False (b) True
27. 27.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
28. 28.True or false: the rowing boat goes forward. (a) True (b) False
29. 29.True or false: the balloon goes backward. (a) False (b) True
30. 30.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) turmeric powder (c) a long string (d) a mirror
31. 31.🎈 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
32. 32.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
33. 33.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
34. 34.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) air from the balloon (d) the swimmer
35. 35.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
36. 36.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
37. 37.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) less friction (d) more friction, less far
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) True (b) False
39. 39.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
40. 40.True or false: a balloon is needed for the balloon rocket. (a) True (b) False

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