Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 970 · 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.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) chew them (c) keep them in your mouth (d) throw them away safely
2. 2.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) forward (c) backward (d) it stays still
3. 3.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
4. 4.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
5. 5.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
6. 6.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
7. 7.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) less friction (c) no change at all (d) it goes faster
8. 8.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
9. 9.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
10. 10.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it changes colour (d) it turns into a kite
11. 11.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes less far (d) it goes much farther
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) how big we blow it (c) the same straw (d) the same string
13. 13.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a mirror (d) a balloon rocket
14. 14.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
15. 15.🚀 Which of these goes backward? (a) air from the balloon (b) the swimmer (c) the balloon (d) the rowing boat
16. 16.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a battery cell (c) a magnet (d) a drinking straw
17. 17.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it speeds up (d) it travels farther
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) a battery cell (d) a balloon
20. 20.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) a mirror (d) a long string
21. 21.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
22. 22.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
23. 23.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
24. 24.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) yeast (d) sticky tape
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) vinegar (d) a balloon
27. 27.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) blow it till it bursts (d) aim it at your friend
28. 28.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a magnet (c) a balloon (d) a mirror
29. 29.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) sticky tape (c) two chairs (d) a long string
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we measure it (c) we keep it the same
31. 31.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a long string (c) a drinking straw (d) a balloon
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) True (b) False
34. 34.🎈 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
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) the same string (c) the same tape (d) distance it travels
36. 36.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we keep it the same (c) we measure it
38. 38.True or false: the rocket goes forward. (a) False (b) True
39. 39.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
40. 40.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) a magnet (d) two chairs

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