Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 121 · 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.🎈 When does the balloon rocket stop? (a) when it gets cold (b) it never stops (c) when it turns blue (d) when the air runs out
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) how big we blow it (c) the same string (d) the same straw
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a long string (d) turmeric powder
5. 5.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
6. 6.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) escaping air pushes it (d) the straw is heavy
7. 7.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it speeds up (c) it goes backward first (d) it travels farther
8. 8.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it can pop loudly (d) it gets too heavy
9. 9.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it flies off the string (d) it turns into a kite
10. 10.⚖️ 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) how big we blow it (c) the same straw (d) distance it travels
11. 11.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) the rowing boat (d) air from the balloon
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) a balloon (d) a battery cell
13. 13.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) keep it away from faces (d) put string round a neck
14. 14.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) water a swimmer pushes (d) the rocket
15. 15.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
16. 16.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
17. 17.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) backward (c) it stays still (d) straight down
18. 18.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a balloon rocket (c) a mirror (d) a sundial
19. 19.True or false: water a swimmer pushes goes forward. (a) True (b) False
20. 20.True or false: gas from the rocket goes forward. (a) False (b) True
21. 21.🎈 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
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we keep it the same (c) we change it
23. 23.⚖️ 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
24. 24.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
25. 25.True or false: water a swimmer pushes goes backward. (a) False (b) True
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
27. 27.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
28. 28.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a magnet (c) turmeric powder (d) sticky tape
29. 29.🛟 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
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we measure it (c) we keep it the same
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a balloon (c) sticky tape (d) a drinking straw
32. 32.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
33. 33.True or false: air from the balloon goes backward. (a) True (b) False
34. 34.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
35. 35.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) vinegar (c) a balloon (d) yeast
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we keep it the same (c) we change it
37. 37.True or false: water from the oars goes forward. (a) True (b) False
38. 38.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
39. 39.True or false: the rocket goes backward. (a) False (b) True
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) True (b) False

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