Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 630 · 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.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) the rocket (d) water a swimmer pushes
2. 2.🚀 Which of these goes backward? (a) the rowing boat (b) water from the oars (c) the swimmer (d) the balloon
3. 3.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
4. 4.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
5. 5.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) escaping air pushes it (c) a magnet pulls it (d) the string pulls it
6. 6.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
7. 7.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it travels farther (c) it goes backward first (d) it speeds up
8. 8.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a balloon rocket (d) a sundial
9. 9.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) it stays still (d) forward
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) vinegar (d) a balloon
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False
12. 12.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a drinking straw (c) a magnet (d) a mirror
13. 13.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when it gets cold (c) it never stops (d) when the air runs out
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a mirror (c) two chairs (d) a drinking straw
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) two chairs (d) a balloon
16. 16.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
17. 17.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it can pop loudly (c) it gets too heavy (d) it changes colour
18. 18.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same tape (c) how big we blow it (d) the slope of the string
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we measure it (c) we keep it the same
21. 21.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) more friction, less far (d) it goes faster
22. 22.True or false: gas from the rocket goes backward. (a) False (b) True
23. 23.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) a long string (c) a balloon (d) a drinking straw
24. 24.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) the rocket (d) air from the balloon
25. 25.⚖️ 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 change it (c) we keep it the same
26. 26.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
27. 27.⚖️ 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 tape (c) distance it travels (d) how big we blow it
28. 28.True or false: air from the balloon goes forward. (a) True (b) False
29. 29.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
30. 30.⚖️ 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) the slope of the string (c) distance it travels
31. 31.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it holds water (d) it guides the balloon
32. 32.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
33. 33.🧺 Do we need a mirror 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: distance it travels is what we measure. (a) True (b) False
35. 35.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) vinegar (c) a battery cell (d) a magnet
36. 36.⚖️ 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
37. 37.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
38. 38.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) sticky tape (c) yeast (d) a battery cell
39. 39.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
40. 40.True or false: a magnet is needed for the balloon rocket. (a) False (b) True

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