Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 626 · 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) a drinking straw (b) two chairs (c) sticky tape (d) turmeric powder
2. 2.🔮 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
3. 3.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it travels farther (d) it speeds up
4. 4.⚖️ 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 same string (c) the same tape (d) the same straw
5. 5.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
6. 6.True or false: water from the oars goes backward. (a) True (b) False
7. 7.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
8. 8.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
9. 9.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
10. 10.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
11. 11.🛟 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
12. 12.True or false: the swimmer goes backward. (a) True (b) False
13. 13.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a mirror (c) yeast (d) a drinking straw
14. 14.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
15. 15.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
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 not needed for the balloon rocket? (a) a long string (b) a balloon (c) sticky tape (d) a mirror
18. 18.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
19. 19.⚖️ 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 measure it (c) we keep it the same
20. 20.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
21. 21.True or false: water from the oars goes forward. (a) False (b) True
22. 22.🚀 Which of these goes backward? (a) the balloon (b) water from the oars (c) the rowing boat (d) the rocket
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) two chairs (c) sticky tape (d) a long string
24. 24.⚖️ 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
25. 25.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) keep it away from faces (d) put string round a neck
26. 26.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
27. 27.🎈 What is the job of the straw on the string? (a) it blows air in (b) it guides the balloon (c) it makes it heavier (d) it holds water
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) how big we blow it (c) distance it travels
29. 29.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) the swimmer (d) air from the balloon
30. 30.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) forward (c) it stays still (d) straight down
31. 31.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
32. 32.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
33. 33.⚖️ 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
34. 34.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) sticky tape (d) a battery cell
36. 36.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) the straw is heavy (d) escaping air pushes it
37. 37.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) water a swimmer pushes (d) the swimmer
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) sticky tape (c) a balloon (d) a drinking straw
39. 39.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
40. 40.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) give them to a baby (c) throw them away safely (d) chew them

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