Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 12 · 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.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a magnet (c) a balloon (d) a long string
2. 2.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same straw (c) how big we blow it (d) the slope of the string
4. 4.🔮 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
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) the slope of the string (c) the same string (d) how big we blow it
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a battery cell (c) a long string (d) a drinking straw
7. 7.True or false: the balloon goes forward. (a) False (b) True
8. 8.🔮 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
9. 9.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) a mirror (d) two chairs
11. 11.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) throw them away safely (d) keep them in your mouth
12. 12.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when the air runs out (d) when it gets cold
13. 13.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) yeast (c) a drinking straw (d) two chairs
14. 14.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
15. 15.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) keep it away from faces (d) put string round a neck
16. 16.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it turns into a kite (d) it changes colour
17. 17.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the balloon (c) the rocket (d) the rowing boat
18. 18.🔮 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
19. 19.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) gas from the rocket (d) the rowing boat
20. 20.⚖️ 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
21. 21.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a battery cell (c) sticky tape (d) turmeric powder
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a magnet (d) two chairs
23. 23.⚖️ 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 measure it (c) we change it
24. 24.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
25. 25.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we measure it (c) we keep it the same
27. 27.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
28. 28.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False
30. 30.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
31. 31.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
32. 32.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
33. 33.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) air from the balloon (d) the swimmer
34. 34.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the string pulls it (c) a magnet pulls it (d) the straw is heavy
35. 35.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) True (b) False
37. 37.True or false: air from the balloon goes forward. (a) True (b) False
38. 38.True or false: yeast is needed for the balloon rocket. (a) True (b) False
39. 39.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) it stays still (d) forward
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False

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