Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 142 · 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.True or false: the balloon goes backward. (a) False (b) True
2. 2.True or false: the rocket goes backward. (a) True (b) False
3. 3.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it makes it heavier (c) it holds water (d) it blows air in
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
5. 5.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when it gets cold (d) when the air runs out
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) turmeric powder (d) two chairs
7. 7.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) the rowing boat (d) water from the oars
8. 8.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) yeast (c) a drinking straw (d) a balloon
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) the same tape (c) distance it travels (d) the same straw
10. 10.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a balloon (c) two chairs (d) a drinking straw
13. 13.⚖️ 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 tape (d) the same straw
14. 14.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it goes much farther (d) it flies off the string
15. 15.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) water a swimmer pushes (d) the swimmer
16. 16.⚖️ 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
17. 17.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) it goes faster (d) more friction, less far
18. 18.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
19. 19.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it can pop loudly (d) it gets too heavy
20. 20.True or false: gas from the rocket goes backward. (a) False (b) True
21. 21.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
22. 22.True or false: water from the oars goes forward. (a) True (b) False
23. 23.🚀 Which of these goes backward? (a) water from the oars (b) the swimmer (c) the rocket (d) the rowing boat
24. 24.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) turmeric powder (c) a drinking straw (d) sticky tape
25. 25.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
26. 26.⚖️ 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
27. 27.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it goes backward first (d) it travels less far
28. 28.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) throw them away safely (c) give them to a baby (d) chew them
29. 29.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the swimmer (c) air from the balloon (d) gas from the rocket
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a long string (c) sticky tape (d) a battery cell
31. 31.True or false: a long string is needed for the balloon rocket. (a) False (b) True
32. 32.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a mirror (c) a magnet (d) a drinking straw
33. 33.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
34. 34.⚖️ 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
35. 35.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a long string (c) a magnet (d) a drinking straw
36. 36.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) forward (c) straight down (d) backward
37. 37.True or false: water a swimmer pushes goes backward. (a) True (b) False
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) two chairs (d) a magnet
39. 39.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) gas from the rocket (d) the balloon
40. 40.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed

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