Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 80 · 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.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
2. 2.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) yeast (c) a magnet (d) two chairs
3. 3.🛟 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
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we measure it (c) we change it
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) a drinking straw (c) sticky tape (d) a long string
7. 7.🎈 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
8. 8.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
9. 9.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a mirror (c) a magnet (d) sticky tape
10. 10.True or false: water a swimmer pushes goes backward. (a) True (b) False
11. 11.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) throw them away safely (c) keep them in your mouth (d) chew them
12. 12.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
13. 13.⚖️ 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
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) a balloon (d) yeast
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we change it (c) we keep it the same
16. 16.⚖️ 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 change it (c) we measure it
17. 17.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) how big we blow it (c) the slope of the string (d) the same straw
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) True (b) False
20. 20.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) less friction (d) no change at all
21. 21.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) aim it at your friend (d) put string round a neck
22. 22.⚖️ 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
23. 23.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
24. 24.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
25. 25.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
26. 26.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a long string (c) a mirror (d) a balloon
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) how big we blow it (c) the same string (d) distance it travels
28. 28.🎈 What is the job of the straw on the string? (a) it holds water (b) it blows air in (c) it guides the balloon (d) it makes it heavier
29. 29.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
30. 30.True or false: the swimmer goes backward. (a) True (b) False
31. 31.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it speeds up (c) it travels farther (d) it travels less far
32. 32.⚖️ 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
33. 33.True or false: gas from the rocket goes backward. (a) False (b) True
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a long string (c) two chairs (d) yeast
35. 35.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) gas from the rocket (d) the rocket
36. 36.True or false: water from the oars goes backward. (a) False (b) True
37. 37.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
38. 38.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
39. 39.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
40. 40.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True

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