Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 411 · 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.⚖️ 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 slope of the string (c) distance it travels (d) how big we blow it
2. 2.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when it gets cold (d) when the air runs out
3. 3.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
4. 4.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) blow it till it bursts (d) aim it at your friend
5. 5.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
6. 6.⚖️ 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 slope of the string
7. 7.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) turmeric powder (c) a battery cell (d) a magnet
8. 8.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it turns into a kite (d) it goes less far
9. 9.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
10. 10.⚖️ 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) True (b) False
11. 11.🎈 What is the job of the straw on the string? (a) it blows air in (b) it holds water (c) it makes it heavier (d) it guides the balloon
12. 12.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
13. 13.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) False (b) True
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we change it (c) we measure it
16. 16.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
17. 17.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) more friction, less far (d) less friction
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) distance it travels (c) how big we blow it (d) the slope of the string
19. 19.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) True (b) False
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a magnet (c) sticky tape (d) two chairs
22. 22.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it can pop loudly (c) it gets too heavy (d) it turns into a kite
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a battery cell (d) a drinking straw
24. 24.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
25. 25.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a balloon rocket (c) a fridge magnet (d) a mirror
26. 26.🧺 Do we need turmeric powder 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 kept the same? (a) how big we blow it (b) the same straw (c) distance it travels
28. 28.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
29. 29.🛟 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
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
31. 31.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a long string (c) a battery cell (d) a magnet
32. 32.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a magnet (c) a balloon (d) vinegar
33. 33.True or false: the rocket goes forward. (a) False (b) True
34. 34.🚀 Which of these goes forward? (a) air from the balloon (b) the swimmer (c) water from the oars (d) gas from the rocket
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we keep it the same (c) we change it
36. 36.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) backward (d) forward
37. 37.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
38. 38.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
39. 39.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
40. 40.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True

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