Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 197 · 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.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) give them to a baby (c) keep them in your mouth (d) chew them
2. 2.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) more friction, less far (d) less friction
3. 3.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
4. 4.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
5. 5.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) a balloon (d) vinegar
6. 6.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) aim it at your friend (d) keep it away from faces
7. 7.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
8. 8.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
9. 9.True or false: yeast is needed for the balloon rocket. (a) False (b) True
10. 10.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a magnet (c) a balloon (d) turmeric powder
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a magnet (c) a long string (d) sticky tape
12. 12.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a balloon rocket (d) a mirror
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the same tape (c) distance it travels (d) the slope of the string
14. 14.True or false: the rocket goes backward. (a) True (b) False
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a balloon (c) a long string (d) sticky tape
16. 16.🧺 Do we need a magnet 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) forward (b) backward (c) straight down (d) it stays still
18. 18.⚖️ 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
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) turmeric powder (d) a long string
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False
21. 21.🎈 When does the balloon rocket stop? (a) when it turns blue (b) it never stops (c) when the air runs out (d) when it gets cold
22. 22.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) the balloon (d) water from the oars
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) True (b) False
24. 24.⚖️ 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 keep it the same (c) we measure it
25. 25.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it changes colour (c) it turns into a kite (d) it gets too heavy
26. 26.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
27. 27.True or false: gas from the rocket goes forward. (a) True (b) False
28. 28.⚖️ 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) how big we blow it (d) the slope of the string
29. 29.True or false: the rowing boat goes backward. (a) True (b) False
30. 30.🧺 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) yeast
31. 31.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
32. 32.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it blows air in (d) it guides the balloon
33. 33.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
35. 35.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
36. 36.True or false: water a swimmer pushes goes forward. (a) False (b) True
37. 37.True or false: the rowing boat goes forward. (a) False (b) True
38. 38.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it goes backward first (c) it travels farther (d) it travels less far
39. 39.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
40. 40.⚖️ 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 keep it the same (c) we change it

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