Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 306 · 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.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it turns into a kite (d) it goes less far
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) a balloon (d) a magnet
3. 3.⚖️ 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
4. 4.True or false: water a swimmer pushes goes forward. (a) True (b) False
5. 5.⚖️ 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
6. 6.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) forward (d) it stays still
7. 7.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
8. 8.⚖️ 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 change it (c) we measure it
9. 9.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
10. 10.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) a long string (d) a magnet
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) a mirror (d) a balloon
12. 12.True or false: a magnet is 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) less friction (c) it goes faster (d) more friction, less far
14. 14.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it speeds up (c) it travels farther (d) it goes backward first
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) vinegar (c) two chairs (d) a long string
16. 16.True or false: the rocket goes backward. (a) True (b) False
17. 17.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it can pop loudly (d) it turns into a kite
18. 18.⚖️ 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) the same tape (c) the same straw (d) how big we blow it
19. 19.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) the rocket (d) gas from the rocket
20. 20.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water a swimmer pushes (d) the swimmer
21. 21.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
22. 22.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) escaping air pushes it (d) the straw is heavy
23. 23.⚖️ 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
24. 24.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
25. 25.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we change it (c) we measure it
27. 27.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) chew them (c) give them to a baby (d) throw them away safely
28. 28.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) a battery cell (d) a drinking straw
29. 29.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
30. 30.True or false: air from the balloon goes forward. (a) False (b) True
31. 31.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a mirror (c) vinegar (d) a drinking straw
32. 32.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a balloon rocket (d) a mirror
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
34. 34.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
35. 35.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
36. 36.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it makes it heavier (c) it blows air in (d) it holds water
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the slope of the string (c) how big we blow it
38. 38.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a long string (c) a mirror (d) two chairs
39. 39.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
40. 40.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) keep it away from faces (d) aim it at your friend

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