Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 153 · 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 is not needed for the balloon rocket? (a) a long string (b) sticky tape (c) turmeric powder (d) a drinking straw
2. 2.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) blow it till it bursts (d) keep it away from faces
3. 3.🎈 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
4. 4.True or false: the balloon goes forward. (a) False (b) True
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a mirror (d) a drinking straw
6. 6.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a balloon (c) a battery cell (d) vinegar
7. 7.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
8. 8.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
9. 9.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
10. 10.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it gets too heavy (c) it changes colour (d) it turns into a kite
11. 11.⚖️ 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
12. 12.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
14. 14.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) more friction, less far (c) less friction (d) it goes faster
15. 15.⚖️ 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
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) a drinking straw (d) vinegar
17. 17.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) water a swimmer pushes (d) the rowing boat
18. 18.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
19. 19.⚖️ 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 straw
20. 20.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) air from the balloon (d) the balloon
21. 21.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it speeds up (d) it travels less far
22. 22.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) keep them in your mouth (c) give them to a baby (d) chew them
23. 23.⚖️ 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
24. 24.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) air from the balloon (d) the rowing boat
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a long string (c) two chairs (d) a balloon
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
28. 28.True or false: a long string is needed for the balloon rocket. (a) True (b) False
29. 29.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) yeast (c) a mirror (d) sticky tape
30. 30.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) a magnet pulls it (d) escaping air pushes it
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) False (b) True
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) a battery cell (d) a drinking straw
33. 33.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a battery cell (c) a drinking straw (d) a magnet
34. 34.🚀 Which of these goes backward? (a) the balloon (b) gas from the rocket (c) the swimmer (d) the rocket
35. 35.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a mirror (c) a balloon rocket (d) a fridge magnet
36. 36.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
37. 37.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a long string (c) yeast (d) a mirror
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) vinegar (c) two chairs (d) a balloon
39. 39.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) air from the balloon (d) the rocket
40. 40.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward

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