Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 390 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a drinking straw (c) two chairs (d) a long string
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) False (b) True
3. 3.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it turns blue (c) when it gets cold (d) it never stops
4. 4.True or false: air from the balloon goes forward. (a) True (b) False
5. 5.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) give them to a baby (c) throw them away safely (d) chew them
6. 6.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) the rowing boat (d) air from the balloon
7. 7.🚀 Which of these goes forward? (a) the swimmer (b) water from the oars (c) water a swimmer pushes (d) air from the balloon
8. 8.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
9. 9.🚀 Which of these goes forward? (a) gas from the rocket (b) the rocket (c) air from the balloon (d) water from the oars
10. 10.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it goes backward first (c) it travels less far (d) it travels farther
11. 11.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a battery cell (c) yeast (d) a drinking straw
12. 12.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
13. 13.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) more friction, less far (c) less friction (d) it goes faster
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.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
16. 16.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) yeast (c) a battery cell (d) a balloon
17. 17.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) aim it at your friend (d) keep it away from faces
18. 18.🔮 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
19. 19.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
20. 20.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) vinegar (c) a battery cell (d) a magnet
21. 21.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it turns into a kite (d) it changes colour
22. 22.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
23. 23.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) a drinking straw (d) a mirror
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
25. 25.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
26. 26.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it holds water (c) it makes it heavier (d) it blows air in
27. 27.True or false: the balloon goes forward. (a) True (b) False
28. 28.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a balloon rocket (c) a mirror (d) a sundial
29. 29.⚖️ 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
30. 30.⚖️ 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) the same straw (c) the same string (d) the slope of the string
31. 31.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we change it (c) we measure it
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) False (b) True
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the slope of the string (c) how big we blow it (d) the same tape
35. 35.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same straw (b) distance it travels (c) how big we blow it
37. 37.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the straw is heavy (c) the string pulls it (d) a magnet pulls it
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a magnet (c) two chairs (d) a long string
39. 39.🚀 Which of these goes backward? (a) the rowing boat (b) air from the balloon (c) the balloon (d) the swimmer
40. 40.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed

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