Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 656 · 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.🔮 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
2. 2.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the slope of the string (c) distance it travels (d) how big we blow it
4. 4.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
5. 5.True or false: a long string is needed for the balloon rocket. (a) False (b) True
6. 6.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
7. 7.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
8. 8.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
9. 9.⚖️ 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
10. 10.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it turns into a kite (d) it goes less far
11. 11.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
12. 12.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) air from the balloon (d) the rocket
13. 13.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a mirror (c) a long string (d) a drinking straw
14. 14.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
15. 15.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
16. 16.True or false: the balloon goes backward. (a) True (b) False
17. 17.True or false: air from the balloon goes forward. (a) True (b) False
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) False (b) True
19. 19.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) air from the balloon (d) the balloon
20. 20.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) forward (d) backward
21. 21.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
22. 22.⚖️ 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
23. 23.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it changes colour (d) it can pop loudly
24. 24.⚖️ 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 keep it the same (c) we change it
25. 25.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a sundial (c) a mirror (d) a balloon rocket
26. 26.⚖️ 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
27. 27.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
28. 28.True or false: water from the oars goes backward. (a) True (b) False
29. 29.⚖️ 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 measure it (c) we change it
30. 30.True or false: the rocket goes backward. (a) False (b) True
31. 31.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) less friction (d) no change at all
32. 32.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a battery cell (c) a balloon (d) a long string
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) a drinking straw (d) a battery cell
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) the same straw (c) distance it travels (d) how big we blow it
35. 35.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when it gets cold (c) it never stops (d) when the air runs out
36. 36.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
37. 37.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) two chairs (d) vinegar
39. 39.True or false: the rowing boat goes backward. (a) True (b) False
40. 40.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False

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