Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 858 · 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: gas from the rocket goes forward. (a) True (b) False
2. 2.⚖️ 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
3. 3.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
4. 4.🛟 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
5. 5.⚖️ 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 slope of the string (c) the same string (d) the same straw
6. 6.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) turmeric powder (c) a magnet (d) vinegar
7. 7.🔮 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
8. 8.⚖️ 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
9. 9.True or false: a long string is needed for the balloon rocket. (a) False (b) True
10. 10.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the string pulls it (c) the straw is heavy (d) a magnet pulls it
11. 11.🚀 Which of these goes backward? (a) gas from the rocket (b) the rowing boat (c) the balloon (d) the swimmer
12. 12.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a balloon (c) a mirror (d) a magnet
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) turmeric powder (c) a balloon (d) sticky tape
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a mirror (d) sticky tape
16. 16.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
17. 17.🛟 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
18. 18.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) the balloon (d) water from the oars
19. 19.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
20. 20.⚖️ 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 tape (c) distance it travels (d) the same string
21. 21.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
22. 22.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a fridge magnet (d) a balloon rocket
23. 23.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
24. 24.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) sticky tape (c) a drinking straw (d) a mirror
25. 25.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
26. 26.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the swimmer (c) the rocket (d) the balloon
27. 27.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) straight down (c) backward (d) it stays still
28. 28.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) sticky tape (c) a mirror (d) turmeric powder
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) vinegar (c) a balloon (d) two chairs
30. 30.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) it goes faster (d) no change at all
31. 31.⚖️ 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
32. 32.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
33. 33.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) a drinking straw (d) yeast
34. 34.🎈 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
35. 35.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) two chairs (c) a mirror (d) turmeric powder
36. 36.⚖️ 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
37. 37.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
38. 38.🚀 Which of these goes backward? (a) air from the balloon (b) the rowing boat (c) the rocket (d) the swimmer
39. 39.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) aim it at your friend (d) keep it away from faces
40. 40.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed

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