Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 629 · 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.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it can pop loudly (d) it turns into a kite
2. 2.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
3. 3.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) more friction, less far (d) it goes faster
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) yeast (c) sticky tape (d) a drinking straw
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a drinking straw (d) a magnet
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we keep it the same (c) we measure it
7. 7.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) a magnet (c) yeast (d) turmeric powder
8. 8.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
9. 9.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a mirror (d) a balloon rocket
10. 10.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
11. 11.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) a battery cell (c) turmeric powder (d) vinegar
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we change it (c) we keep it the same
13. 13.⚖️ 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 slope of the string (d) the same tape
14. 14.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a balloon (d) a battery cell
16. 16.True or false: water from the oars goes forward. (a) False (b) True
17. 17.🔮 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
18. 18.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
19. 19.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) the rowing boat (d) gas from the rocket
20. 20.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
21. 21.True or false: gas from the rocket goes forward. (a) True (b) False
22. 22.🎈 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
23. 23.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
24. 24.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
25. 25.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
26. 26.True or false: a long string is needed for the balloon rocket. (a) False (b) True
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we keep it the same (c) we measure it
28. 28.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) vinegar (d) two chairs
29. 29.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) False (b) True
31. 31.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
32. 32.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
33. 33.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it blows air in (c) it guides the balloon (d) it holds water
34. 34.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) a battery cell (c) turmeric powder (d) a mirror
35. 35.True or false: gas from the rocket goes backward. (a) True (b) False
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same string (c) how big we blow it
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same straw (c) the same string (d) the same tape
38. 38.🔮 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
39. 39.True or false: the swimmer goes backward. (a) False (b) True
40. 40.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed

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