Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 150 · 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.🚀 Which of these goes forward? (a) the rocket (b) gas from the rocket (c) water from the oars (d) air from the balloon
2. 2.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it travels less far (d) it speeds up
3. 3.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
4. 4.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the slope of the string (b) how big we blow it (c) distance it travels
6. 6.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
7. 7.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) vinegar (c) a long string (d) sticky tape
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we change it (c) we keep it the same
9. 9.⚖️ 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) distance it travels (c) the same string
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we keep it the same (c) we change it
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a magnet (c) a long string (d) a drinking straw
13. 13.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it turns into a kite (d) it can pop loudly
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) sticky tape (d) a battery cell
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) a drinking straw (d) a mirror
16. 16.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
17. 17.⚖️ 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 same straw (c) how big we blow it (d) the same tape
18. 18.True or false: gas from the rocket goes forward. (a) True (b) False
19. 19.⚖️ 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 measure it (c) we change it
20. 20.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
21. 21.🚀 Which of these goes forward? (a) the rowing boat (b) gas from the rocket (c) water a swimmer pushes (d) air from the balloon
22. 22.🚀 Which of these goes backward? (a) air from the balloon (b) the balloon (c) the rocket (d) the swimmer
23. 23.True or false: water from the oars goes forward. (a) False (b) True
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) False (b) True
25. 25.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
26. 26.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
27. 27.⚖️ 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
28. 28.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) a magnet pulls it (c) the string pulls it (d) the straw is heavy
29. 29.True or false: air from the balloon goes forward. (a) False (b) True
30. 30.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water from the oars (d) the swimmer
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) False (b) True
32. 32.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
33. 33.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) straight down (d) forward
34. 34.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it holds water (d) it guides the balloon
35. 35.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a battery cell (c) sticky tape (d) a balloon
36. 36.True or false: the rocket goes backward. (a) True (b) False
37. 37.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water from the oars (d) the balloon
38. 38.True or false: the swimmer goes backward. (a) False (b) True
39. 39.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes less far (c) it flies off the string (d) it goes much farther
40. 40.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a sundial (c) a balloon rocket (d) a mirror

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