Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 413 · 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.⚖️ 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 straw (d) the slope of the string
2. 2.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it can pop loudly (c) it turns into a kite (d) it gets too heavy
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) a drinking straw (d) vinegar
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) sticky tape (c) a balloon (d) a long string
5. 5.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a sundial (d) a balloon rocket
6. 6.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
7. 7.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) chew them (c) throw them away safely (d) keep them in your mouth
8. 8.🚀 Which of these goes backward? (a) the rocket (b) air from the balloon (c) the swimmer (d) the balloon
9. 9.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) gas from the rocket (d) the balloon
10. 10.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) the balloon (d) water from the oars
11. 11.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a long string (c) a battery cell (d) a balloon
12. 12.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) water a swimmer pushes (d) the rocket
13. 13.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
14. 14.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) it stays still (c) backward (d) forward
15. 15.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a battery cell (c) vinegar (d) a drinking straw
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
17. 17.🔮 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
18. 18.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) the rowing boat (d) water a swimmer pushes
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a drinking straw (d) a battery cell
20. 20.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it flies off the string (d) it goes less far
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) the slope of the string (c) how big we blow it (d) the same tape
22. 22.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
24. 24.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) vinegar (c) sticky tape (d) a balloon
25. 25.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
26. 26.🚀 Which of these goes backward? (a) the rowing boat (b) gas from the rocket (c) the balloon (d) the rocket
27. 27.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a mirror (c) sticky tape (d) a drinking straw
28. 28.True or false: gas from the rocket goes forward. (a) True (b) False
29. 29.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a long string (c) a magnet (d) two chairs
30. 30.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
31. 31.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
32. 32.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) False (b) True
34. 34.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) how big we blow it (c) distance it travels
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
37. 37.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
38. 38.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
39. 39.🎈 What is the job of the straw on the string? (a) it holds water (b) it blows air in (c) it makes it heavier (d) it guides the balloon
40. 40.True or false: gas from the rocket goes backward. (a) False (b) True

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