Balloon Rocket STEM Worksheet

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

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