Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 3 · 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 travels less far (b) it goes backward first (c) it speeds up (d) it travels farther
2. 2.True or false: the balloon goes forward. (a) True (b) False
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same string (c) the same straw (d) the slope of the string
4. 4.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the balloon (c) the rocket (d) the rowing boat
5. 5.🚀 Which of these goes forward? (a) the rowing boat (b) air from the balloon (c) water a swimmer pushes (d) water from the oars
6. 6.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
7. 7.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) forward (c) it stays still (d) backward
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) False (b) True
9. 9.⚖️ 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 change it (c) we keep it the same
10. 10.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
11. 11.⚖️ 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 keep it the same (c) we measure it
12. 12.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when it gets cold (c) when the air runs out (d) it never stops
13. 13.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) the rowing boat (d) gas from the rocket
14. 14.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
15. 15.🚀 Which of these goes forward? (a) water from the oars (b) the swimmer (c) water a swimmer pushes (d) gas from the rocket
16. 16.🚀 Which of these goes backward? (a) air from the balloon (b) the swimmer (c) the rowing boat (d) the balloon
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) how big we blow it (c) the same straw (d) distance it travels
18. 18.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a mirror (c) a long string (d) a magnet
19. 19.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
20. 20.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
21. 21.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) more friction, less far (d) no change at all
22. 22.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
23. 23.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) a magnet (d) a balloon
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the slope of the string
26. 26.🔮 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
27. 27.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
28. 28.True or false: water a swimmer pushes goes backward. (a) True (b) False
29. 29.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
30. 30.True or false: a long string is needed for the balloon rocket. (a) True (b) False
31. 31.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a magnet (c) two chairs (d) a mirror
32. 32.True or false: the swimmer goes forward. (a) False (b) True
33. 33.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) sticky tape (c) a balloon (d) a long string
34. 34.🛟 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
35. 35.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) throw them away safely (c) chew them (d) keep them in your mouth
36. 36.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
37. 37.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
38. 38.True or false: the balloon goes backward. (a) True (b) False
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) a mirror (d) sticky tape
40. 40.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it guides the balloon (d) it holds water

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