Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 48 · 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: the rowing boat goes backward. (a) True (b) False
2. 2.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) keep them in your mouth (d) give them to a baby
3. 3.⚖️ 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
4. 4.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
5. 5.True or false: a long string is needed for the balloon rocket. (a) True (b) False
6. 6.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
7. 7.True or false: the swimmer goes forward. (a) True (b) False
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) how big we blow it (c) the same tape (d) the same straw
9. 9.⚖️ 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
10. 10.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
11. 11.⚖️ 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) the slope of the string (d) how big we blow it
12. 12.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) the swimmer (d) gas from the rocket
13. 13.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
14. 14.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes less far (c) it turns into a kite (d) it goes much farther
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 keep it the same (c) we change it
16. 16.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
17. 17.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) escaping air pushes it (c) the string pulls it (d) the straw is heavy
18. 18.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) more friction, less far (d) no change at all
19. 19.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when it gets cold (d) when the air runs out
20. 20.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
21. 21.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it goes backward first (c) it travels less far (d) it speeds up
22. 22.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
24. 24.🚀 Which of these goes forward? (a) air from the balloon (b) the rowing boat (c) gas from the rocket (d) water from the oars
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a long string (c) a drinking straw (d) a balloon
27. 27.True or false: water from the oars goes forward. (a) True (b) False
28. 28.⚖️ 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
29. 29.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
30. 30.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) two chairs (d) a mirror
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
33. 33.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) forward (c) straight down (d) backward
34. 34.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a sundial (c) a fridge magnet (d) a mirror
35. 35.🚀 Which of these goes forward? (a) the rocket (b) air from the balloon (c) water a swimmer pushes (d) water from the oars
36. 36.🛟 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
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a drinking straw (c) two chairs (d) sticky tape
38. 38.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
39. 39.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
40. 40.True or false: the rocket goes forward. (a) False (b) True

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