Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 298 · 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) two chairs (b) a long string (c) a drinking straw (d) a mirror
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) how big we blow it (c) the same string (d) distance it travels
3. 3.True or false: the rocket goes backward. (a) False (b) True
4. 4.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) put string round a neck (d) keep it away from faces
5. 5.⚖️ 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
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) the same string (c) how big we blow it (d) the same tape
7. 7.⚖️ 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
8. 8.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
9. 9.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
10. 10.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it travels less far (c) it goes backward first (d) it speeds up
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) turmeric powder (d) a long string
12. 12.🛟 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
13. 13.🎈 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
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) yeast (d) a drinking straw
15. 15.⚖️ 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
16. 16.⚖️ 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
17. 17.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a balloon (c) a mirror (d) a magnet
18. 18.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a balloon rocket (d) a fridge magnet
19. 19.⚖️ 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
20. 20.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) the rowing boat (d) gas from the rocket
21. 21.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) forward (c) backward (d) straight down
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a magnet (c) a balloon (d) a drinking straw
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we keep it the same (c) we measure it
24. 24.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a magnet (c) turmeric powder (d) two chairs
25. 25.⚖️ 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
26. 26.True or false: gas from the rocket goes backward. (a) False (b) True
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) False (b) True
28. 28.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
29. 29.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) a drinking straw (c) sticky tape (d) a balloon
31. 31.⚖️ 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
32. 32.True or false: water a swimmer pushes goes backward. (a) True (b) False
33. 33.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes less far (c) it goes much farther (d) it flies off the string
34. 34.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) water from the oars (d) the balloon
35. 35.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
36. 36.🎈 When does the balloon rocket stop? (a) it never stops (b) when it gets cold (c) when it turns blue (d) when the air runs out
37. 37.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) air from the balloon (d) the rocket
38. 38.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
39. 39.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
40. 40.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed

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