Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 289 · 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: a balloon is not needed for the balloon rocket. (a) False (b) True
2. 2.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
3. 3.🛟 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
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
5. 5.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
6. 6.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same string (c) distance it travels (d) the same straw
8. 8.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) turmeric powder (c) a magnet (d) sticky tape
9. 9.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) vinegar (c) two chairs (d) a long string
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) the same string (c) distance it travels (d) how big we blow it
12. 12.⚖️ 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 measure it (c) we keep it the same
13. 13.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
14. 14.True or false: the rocket goes backward. (a) False (b) True
15. 15.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) less friction (d) more friction, less far
16. 16.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes much farther (d) it goes less far
17. 17.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
18. 18.True or false: the rocket goes forward. (a) True (b) False
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
20. 20.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) it never stops (d) when the air runs out
21. 21.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) a long string (c) two chairs (d) sticky tape
22. 22.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) turmeric powder (c) a long string (d) a battery cell
23. 23.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) turmeric powder (d) two chairs
25. 25.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it travels less far (d) it goes backward first
26. 26.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) yeast (c) a drinking straw (d) a mirror
27. 27.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) throw them away safely (c) give them to a baby (d) chew them
28. 28.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) keep it away from faces (c) put string round a neck (d) blow it till it bursts
29. 29.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
30. 30.True or false: the rowing boat goes forward. (a) True (b) False
31. 31.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it blows air in (c) it holds water (d) it guides the balloon
32. 32.True or false: the balloon goes backward. (a) True (b) False
33. 33.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
34. 34.⚖️ 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
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) False (b) True
36. 36.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
37. 37.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
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 change it (c) we measure it
39. 39.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
40. 40.🎈 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

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