Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 607 · 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: the rowing boat goes forward. (a) False (b) True
2. 2.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it can pop loudly (d) it changes colour
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a magnet (c) a balloon (d) a long string
4. 4.🎈 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
5. 5.True or false: the rowing boat goes backward. (a) False (b) True
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a battery cell (c) a drinking straw (d) two chairs
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
8. 8.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) the swimmer (d) water from the oars
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) how big we blow it (c) the same string (d) the same straw
10. 10.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
11. 11.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it turns into a kite (d) it goes less far
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False
13. 13.🔮 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
14. 14.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
15. 15.⚖️ 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 measure it (c) we change it
16. 16.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we measure it (c) we change it
18. 18.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
19. 19.True or false: gas from the rocket goes forward. (a) False (b) True
20. 20.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) aim it at your friend (c) blow it till it bursts (d) put string round a neck
21. 21.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) when the air runs out (d) it never stops
22. 22.🚀 Which of these goes forward? (a) gas from the rocket (b) the rocket (c) air from the balloon (d) water from the oars
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) turmeric powder (d) a drinking straw
24. 24.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) the rowing boat (d) air from the balloon
25. 25.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
26. 26.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
27. 27.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we keep it the same (c) we change it
29. 29.⚖️ 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
30. 30.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) chew them (d) throw them away safely
31. 31.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) forward (c) straight down (d) it stays still
32. 32.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a balloon rocket (c) a mirror (d) a fridge magnet
33. 33.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) vinegar (c) a drinking straw (d) a magnet
34. 34.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
35. 35.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) sticky tape (c) a magnet (d) vinegar
36. 36.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
37. 37.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) a drinking straw (d) yeast
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) sticky tape (d) a mirror
39. 39.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
40. 40.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) yeast (c) vinegar (d) a mirror

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