Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 492 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) two chairs (d) a mirror
2. 2.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) the swimmer (d) air from the balloon
3. 3.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) keep it away from faces (d) put string round a neck
4. 4.True or false: a long string is needed for the balloon rocket. (a) True (b) False
5. 5.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) yeast (c) turmeric powder (d) a mirror
6. 6.⚖️ 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) False (b) True
7. 7.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a battery cell (c) a balloon (d) sticky tape
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it goes backward first (c) it travels less far (d) it speeds up
10. 10.⚖️ 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) the same tape (d) distance it travels
11. 11.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) no change at all (d) more friction, less far
12. 12.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) yeast (c) sticky tape (d) a drinking straw
14. 14.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) the balloon (d) air from the balloon
15. 15.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a mirror (c) a balloon (d) a magnet
16. 16.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a mirror (c) a fridge magnet (d) a sundial
17. 17.True or false: the balloon goes forward. (a) True (b) False
18. 18.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
19. 19.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) water a swimmer pushes (d) the rocket
20. 20.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the swimmer (d) water a swimmer pushes
21. 21.⚖️ 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
22. 22.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) water from the oars (d) the balloon
23. 23.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
24. 24.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it turns into a kite (d) it can pop loudly
25. 25.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
26. 26.True or false: the rocket goes forward. (a) False (b) True
27. 27.True or false: the balloon goes backward. (a) False (b) True
28. 28.🎈 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
29. 29.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) the straw is heavy (d) escaping air pushes it
30. 30.True or false: water a swimmer pushes goes forward. (a) True (b) False
31. 31.True or false: water from the oars goes forward. (a) False (b) True
32. 32.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
33. 33.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it gets cold (c) it never stops (d) when it turns blue
34. 34.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a drinking straw (c) a magnet (d) turmeric powder
35. 35.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
36. 36.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) backward (c) forward (d) it stays still
37. 37.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
38. 38.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
39. 39.⚖️ 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 same string (c) distance it travels
40. 40.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a battery cell (c) a long string (d) yeast

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