Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 224 · 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.⚖️ 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
2. 2.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
3. 3.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the swimmer (d) air from the balloon
4. 4.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
5. 5.⚖️ 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
6. 6.⚖️ 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) how big we blow it (d) the same tape
7. 7.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it turns into a kite (d) it goes less far
8. 8.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) give them to a baby (c) keep them in your mouth (d) chew them
9. 9.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
10. 10.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
11. 11.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it changes colour (c) it can pop loudly (d) it gets too heavy
12. 12.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) a magnet (c) yeast (d) vinegar
13. 13.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) blow it till it bursts (d) keep it away from faces
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we measure it (c) we keep it the same
15. 15.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
16. 16.⚖️ 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 keep it the same (c) we measure it
17. 17.🎈 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
18. 18.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
19. 19.🔮 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
20. 20.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) sticky tape (c) turmeric powder (d) a battery cell
21. 21.⚖️ 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
22. 22.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a balloon rocket (d) a fridge magnet
23. 23.True or false: a long string is needed for the balloon rocket. (a) True (b) False
24. 24.🎈 What is the job of the straw on the string? (a) it blows air in (b) it holds water (c) it makes it heavier (d) it guides the balloon
25. 25.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when the air runs out (c) it never stops (d) when it gets cold
26. 26.⚖️ 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
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) distance it travels (c) how big we blow it
28. 28.🚀 Which of these goes forward? (a) water from the oars (b) the balloon (c) gas from the rocket (d) water a swimmer pushes
29. 29.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
30. 30.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
31. 31.⚖️ 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
32. 32.True or false: the rocket goes forward. (a) False (b) True
33. 33.🎈 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
34. 34.True or false: gas from the rocket goes forward. (a) False (b) True
35. 35.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
36. 36.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) a drinking straw (d) vinegar
37. 37.True or false: water from the oars goes forward. (a) True (b) False
38. 38.⚖️ 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
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) False (b) True
40. 40.🧺 Which of these is not needed for the balloon rocket? (a) turmeric powder (b) sticky tape (c) a balloon (d) two chairs

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