Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 253 · 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.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) it stays still (c) forward (d) backward
2. 2.⚖️ 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
3. 3.⚖️ 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 string (c) the same tape (d) the same straw
4. 4.🔮 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
5. 5.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
6. 6.🚀 Which of these goes backward? (a) water from the oars (b) the balloon (c) the rocket (d) the rowing boat
7. 7.⚖️ 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 tape
8. 8.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
9. 9.🔮 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
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) True (b) False
11. 11.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
12. 12.True or false: water a swimmer pushes goes backward. (a) False (b) True
13. 13.True or false: the balloon goes backward. (a) True (b) False
14. 14.⚖️ 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 slope of the string (c) distance it travels (d) the same straw
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) a drinking straw (d) a mirror
16. 16.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
17. 17.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) a mirror (c) a battery cell (d) turmeric powder
18. 18.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
19. 19.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) escaping air pushes it (c) the string pulls it (d) a magnet pulls it
20. 20.⚖️ 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
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 magnet (d) two chairs
22. 22.True or false: air from the balloon goes backward. (a) False (b) True
23. 23.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
24. 24.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a mirror (d) a long string
26. 26.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) gas from the rocket (d) the balloon
27. 27.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it changes colour (d) it can pop loudly
28. 28.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
29. 29.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
30. 30.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) a balloon (d) turmeric powder
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we keep it the same (c) we change it
33. 33.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) vinegar (c) a magnet (d) two chairs
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) a balloon (d) a magnet
35. 35.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
36. 36.True or false: the balloon goes forward. (a) False (b) True
37. 37.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.⚖️ 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 change it (c) we keep it the same
40. 40.True or false: a balloon is needed for the balloon rocket. (a) True (b) False

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids