Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 194 · 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.True or false: a long string is needed for the balloon rocket. (a) True (b) False
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same straw (b) distance it travels (c) how big we blow it
3. 3.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
4. 4.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a magnet (c) a mirror (d) a long string
5. 5.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
6. 6.True or false: the balloon goes forward. (a) True (b) False
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
8. 8.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we keep it the same (c) we change it
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a mirror (c) a balloon (d) two chairs
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a balloon (c) two chairs (d) a drinking straw
12. 12.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
13. 13.⚖️ 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 change it (c) we measure it
14. 14.⚖️ 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
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.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) the same string (c) how big we blow it (d) the same tape
17. 17.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
18. 18.True or false: the balloon goes backward. (a) True (b) False
19. 19.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
20. 20.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a sundial (d) a balloon rocket
21. 21.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
22. 22.🔮 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
23. 23.⚖️ 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
24. 24.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
25. 25.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
26. 26.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
27. 27.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
28. 28.True or false: water from the oars goes backward. (a) True (b) False
29. 29.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
30. 30.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it goes backward first (d) it travels less far
31. 31.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
32. 32.⚖️ 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
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) the same string (c) the slope of the string (d) distance it travels
34. 34.⚖️ 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 measure it (c) we keep it the same
35. 35.⚖️ 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
36. 36.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) forward (c) it stays still (d) straight down
37. 37.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
38. 38.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) less friction (d) no change at all
39. 39.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it changes colour (c) it can pop loudly (d) it gets too heavy
40. 40.True or false: gas from the rocket goes forward. (a) True (b) False

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