Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 770 · 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: a battery cell is not needed for the balloon rocket. (a) False (b) True
2. 2.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) vinegar (c) turmeric powder (d) a magnet
3. 3.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
4. 4.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
5. 5.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
6. 6.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) more friction, less far (d) it goes faster
7. 7.⚖️ 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) the same string (c) the slope of the string (d) how big we blow it
8. 8.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) the balloon (d) gas from the rocket
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) a magnet (d) a long string
10. 10.True or false: the rowing boat goes forward. (a) False (b) True
11. 11.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
12. 12.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) air from the balloon (d) the rowing boat
13. 13.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a battery cell (c) a magnet (d) a long string
14. 14.⚖️ 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) the same tape (c) distance it travels (d) the same string
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) a mirror (d) two chairs
16. 16.True or false: water from the oars goes forward. (a) True (b) False
17. 17.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) the rowing boat (d) water from the oars
18. 18.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) chew them (c) throw them away safely (d) give them to a baby
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) yeast (c) a long string (d) sticky tape
20. 20.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
21. 21.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the straw is heavy (c) the string pulls it (d) escaping air pushes it
22. 22.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it can pop loudly (d) it turns into a kite
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we keep it the same (c) we measure it
24. 24.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
25. 25.🔮 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
26. 26.🛟 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
27. 27.🎈 What is the job of the straw on the string? (a) it holds water (b) it blows air in (c) it makes it heavier (d) it guides the balloon
28. 28.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
29. 29.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) forward (d) straight down
30. 30.⚖️ 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
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) False (b) True
32. 32.True or false: the swimmer goes backward. (a) True (b) False
33. 33.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) False (b) True
35. 35.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
36. 36.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same tape (c) how big we blow it
38. 38.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) a balloon (d) vinegar
39. 39.⚖️ 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
40. 40.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) yeast (c) sticky tape (d) turmeric powder

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