Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 383 · 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.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) vinegar (c) a long string (d) turmeric powder
2. 2.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) give them to a baby (d) keep them in your mouth
3. 3.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
4. 4.🚀 Which of these goes forward? (a) the rocket (b) air from the balloon (c) water from the oars (d) gas from the rocket
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False
6. 6.🚀 Which of these goes backward? (a) the rocket (b) the balloon (c) the rowing boat (d) air from the balloon
7. 7.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) turmeric powder (c) two chairs (d) a long string
9. 9.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) a drinking straw (d) a battery cell
10. 10.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
11. 11.🛟 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
12. 12.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it goes backward first (d) it travels farther
13. 13.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
14. 14.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a fridge magnet (d) a balloon rocket
15. 15.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
16. 16.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
17. 17.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
18. 18.⚖️ 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
19. 19.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) gas from the rocket (d) the rowing boat
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) how big we blow it (c) distance it travels
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) a drinking straw (d) a mirror
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) two chairs (d) a battery cell
23. 23.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) forward (d) backward
24. 24.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
25. 25.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) sticky tape (c) a magnet (d) a drinking straw
26. 26.True or false: the swimmer goes forward. (a) False (b) True
27. 27.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) more friction, less far (d) less friction
28. 28.True or false: water from the oars goes forward. (a) False (b) True
29. 29.⚖️ 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
30. 30.⚖️ 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
31. 31.True or false: the rocket goes backward. (a) False (b) True
32. 32.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it holds water (d) it guides the balloon
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we keep it the same (c) we change it
34. 34.⚖️ 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 measure it (c) we change it
35. 35.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) the same string (c) distance it travels (d) the same straw
37. 37.True or false: the rowing boat goes backward. (a) True (b) False
38. 38.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
39. 39.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) water from the oars (d) the swimmer
40. 40.True or false: gas from the rocket goes forward. (a) True (b) False

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