Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 713 · 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 the one thing we change? (a) the same tape (b) how big we blow it (c) the same straw (d) the slope of the string
2. 2.True or false: the swimmer goes backward. (a) False (b) True
3. 3.🔮 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
4. 4.🔮 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
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
6. 6.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
7. 7.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
8. 8.True or false: air from the balloon goes backward. (a) False (b) True
9. 9.🚀 Which of these goes backward? (a) the rowing boat (b) air from the balloon (c) the balloon (d) the rocket
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False
12. 12.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a drinking straw (c) a magnet (d) two chairs
13. 13.⚖️ 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
14. 14.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
15. 15.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
16. 16.True or false: water from the oars goes backward. (a) True (b) False
17. 17.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) gas from the rocket (d) the swimmer
18. 18.⚖️ 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
19. 19.⚖️ 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
20. 20.⚖️ 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 slope of the string (c) distance it travels
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same string (c) the slope of the string (d) the same straw
22. 22.🚀 Which of these goes forward? (a) air from the balloon (b) the rowing boat (c) gas from the rocket (d) water a swimmer pushes
23. 23.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it guides the balloon (c) it blows air in (d) it holds water
24. 24.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
25. 25.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) two chairs (c) a balloon (d) vinegar
26. 26.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) vinegar (c) a mirror (d) a battery cell
27. 27.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) backward (c) straight down (d) forward
28. 28.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
29. 29.⚖️ 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
30. 30.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) aim it at your friend (d) put string round a neck
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a balloon (c) two chairs (d) a drinking straw
32. 32.True or false: the balloon goes backward. (a) True (b) False
33. 33.🎈 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
34. 34.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it can pop loudly (d) it changes colour
35. 35.⚖️ 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
36. 36.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a long string (c) a balloon (d) sticky tape
38. 38.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
39. 39.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) keep them in your mouth (d) throw them away safely
40. 40.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward

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