Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 794 · 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) vinegar (b) yeast (c) sticky tape (d) a mirror
2. 2.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) a magnet (d) two chairs
3. 3.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) water from the oars (d) the rowing boat
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a mirror (d) a drinking straw
5. 5.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) distance it travels (c) the same tape (d) the same string
7. 7.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
8. 8.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when it gets cold (c) it never stops (d) when the air runs out
9. 9.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
10. 10.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) less friction (c) it goes faster (d) no change at all
11. 11.⚖️ 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
12. 12.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a sundial (c) a fridge magnet (d) a mirror
13. 13.⚖️ 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
14. 14.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) two chairs (c) vinegar (d) a magnet
15. 15.🎈 What is the job of the straw on the string? (a) it blows air in (b) it guides the balloon (c) it holds water (d) it makes it heavier
16. 16.🔮 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
17. 17.⚖️ 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
18. 18.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
19. 19.True or false: the swimmer goes forward. (a) False (b) True
20. 20.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
21. 21.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) a magnet pulls it (d) escaping air pushes it
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
23. 23.🚀 Which of these goes backward? (a) water from the oars (b) the swimmer (c) the rowing boat (d) the balloon
24. 24.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
25. 25.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we keep it the same (c) we change it
27. 27.True or false: gas from the rocket goes forward. (a) False (b) True
28. 28.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it turns into a kite (d) it flies off the string
29. 29.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
30. 30.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) throw them away safely (d) chew them
31. 31.True or false: the rowing boat goes backward. (a) False (b) True
32. 32.True or false: the balloon goes forward. (a) False (b) True
33. 33.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
34. 34.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
35. 35.🎈 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
36. 36.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
37. 37.🚀 Which of these goes backward? (a) the balloon (b) water a swimmer pushes (c) the rocket (d) the rowing boat
38. 38.True or false: gas from the rocket goes backward. (a) False (b) True
39. 39.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False

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