Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 87 · 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.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
2. 2.🎈 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
3. 3.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a mirror (c) a balloon (d) turmeric powder
4. 4.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a fridge magnet (d) a balloon rocket
5. 5.🔮 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
6. 6.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
7. 7.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) a battery cell (c) vinegar (d) a mirror
8. 8.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
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 keep it the same (b) we change it (c) we measure it
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) distance it travels (c) the same string (d) the same straw
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) two chairs (d) vinegar
12. 12.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) a balloon (c) two chairs (d) a drinking straw
13. 13.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it flies off the string (c) it goes much farther (d) it goes less far
14. 14.True or false: gas from the rocket goes forward. (a) True (b) False
15. 15.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
16. 16.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it can pop loudly (c) it gets too heavy (d) it turns into a kite
17. 17.⚖️ 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
18. 18.True or false: gas from the rocket goes backward. (a) False (b) True
19. 19.⚖️ 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
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) True (b) False
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) yeast (d) a balloon
22. 22.🚀 Which of these goes forward? (a) the swimmer (b) air from the balloon (c) gas from the rocket (d) water from the oars
23. 23.⚖️ 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
24. 24.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it goes backward first (c) it travels less far (d) it speeds up
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we measure it (c) we change it
26. 26.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
27. 27.True or false: the balloon goes forward. (a) False (b) True
28. 28.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) the swimmer (d) air from the balloon
29. 29.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) backward (d) forward
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we change it (c) we measure it
31. 31.🚀 Which of these goes backward? (a) water from the oars (b) the balloon (c) the rowing boat (d) the swimmer
32. 32.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) distance it travels (c) the same tape (d) the same straw
34. 34.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a long string (c) turmeric powder (d) yeast
35. 35.🎈 When does the balloon rocket stop? (a) when it turns blue (b) it never stops (c) when the air runs out (d) when it gets cold
36. 36.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
37. 37.⚖️ 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) True (b) False
38. 38.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
39. 39.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
40. 40.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True

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