Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 633 · 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.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
2. 2.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) keep it away from faces (c) put string round a neck (d) aim it at your friend
3. 3.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
4. 4.🎈 What is the job of the straw on the string? (a) it blows air in (b) it guides the balloon (c) it makes it heavier (d) it holds water
5. 5.⚖️ 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
6. 6.🧺 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 mirror
7. 7.🎈 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
8. 8.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a magnet (c) two chairs (d) a long string
9. 9.🛟 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
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
11. 11.🚀 Which of these goes forward? (a) the swimmer (b) water a swimmer pushes (c) air from the balloon (d) gas from the rocket
12. 12.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it goes backward first (c) it travels less far (d) it travels farther
13. 13.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a mirror (c) a drinking straw (d) a battery cell
14. 14.🎈 When does the balloon rocket stop? (a) it never stops (b) when it gets cold (c) when it turns blue (d) when the air runs out
15. 15.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) False (b) True
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we measure it (c) we keep it the same
18. 18.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
19. 19.🛟 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
20. 20.True or false: the rocket goes backward. (a) True (b) False
21. 21.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) sticky tape (c) a magnet (d) turmeric powder
22. 22.🚀 Which of these goes backward? (a) air from the balloon (b) the rocket (c) the rowing boat (d) the swimmer
23. 23.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
24. 24.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it goes much farther (c) it flies off the string (d) it turns into a kite
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) the same string (c) how big we blow it (d) distance it travels
26. 26.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a mirror (c) two chairs (d) a battery cell
27. 27.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a long string (c) yeast (d) a drinking straw
28. 28.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
29. 29.True or false: air from the balloon goes forward. (a) False (b) True
30. 30.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
31. 31.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) escaping air pushes it (c) the string pulls it (d) a magnet pulls it
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) False (b) True
33. 33.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) turmeric powder (c) a balloon (d) sticky tape
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) how big we blow it (b) the same tape (c) distance it travels
36. 36.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) water from the oars (d) the balloon
37. 37.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
38. 38.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) vinegar (c) two chairs (d) a balloon
39. 39.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a balloon rocket (d) a mirror
40. 40.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True

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