Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 436 · 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 the rowing boat go? (a) goes backward (b) goes forward
2. 2.True or false: water a swimmer pushes goes forward. (a) False (b) True
3. 3.⚖️ 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 straw (d) how big we blow it
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) two chairs (d) turmeric powder
5. 5.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) sticky tape (d) a magnet
6. 6.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
7. 7.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
9. 9.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it travels less far (d) it goes backward first
10. 10.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) a mirror (d) a long string
11. 11.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
12. 12.True or false: water from the oars goes forward. (a) False (b) True
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a magnet (c) sticky tape (d) a balloon
14. 14.True or false: the balloon goes backward. (a) True (b) False
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a drinking straw (c) a balloon (d) a long string
16. 16.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a mirror (c) yeast (d) a long string
17. 17.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) keep them in your mouth (d) throw them away safely
18. 18.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a fridge magnet (d) a balloon rocket
19. 19.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) it stays still (c) forward (d) backward
20. 20.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) put string round a neck (c) blow it till it bursts (d) keep it away from faces
21. 21.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) yeast (c) a drinking straw (d) sticky tape
22. 22.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it gets too heavy (d) it can pop loudly
23. 23.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) it goes faster (c) no change at all (d) less friction
24. 24.True or false: water from the oars goes backward. (a) False (b) True
25. 25.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
26. 26.⚖️ 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
27. 27.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we change it (c) we measure it
29. 29.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a balloon (c) a magnet (d) yeast
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) sticky tape (c) two chairs (d) a balloon
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
32. 32.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) escaping air pushes it (c) the straw is heavy (d) the string pulls it
33. 33.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes less far (c) it goes much farther (d) it turns into a kite
34. 34.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
35. 35.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) sticky tape (d) vinegar
36. 36.🧺 Which of these is not needed for the balloon rocket? (a) turmeric powder (b) a balloon (c) two chairs (d) sticky tape
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
38. 38.🎈 When does the balloon rocket stop? (a) when the air runs out (b) it never stops (c) when it turns blue (d) when it gets cold
39. 39.⚖️ 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
40. 40.⚖️ 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

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