Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 114 · 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.⚖️ 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 change it (c) we measure it
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) distance it travels (c) how big we blow it (d) the same tape
3. 3.🎈 When does the balloon rocket stop? (a) it never stops (b) when it gets cold (c) when it turns blue (d) when the air runs out
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a magnet (d) two chairs
5. 5.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) sticky tape (d) turmeric powder
6. 6.True or false: air from the balloon goes forward. (a) False (b) True
7. 7.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
8. 8.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) the balloon (d) water a swimmer pushes
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) a battery cell (d) two chairs
10. 10.🎈 What is the job of the straw on the string? (a) it holds water (b) it guides the balloon (c) it makes it heavier (d) it blows air in
11. 11.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a mirror (c) turmeric powder (d) sticky tape
12. 12.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) escaping air pushes it (c) a magnet pulls it (d) the straw is heavy
13. 13.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) keep it away from faces (d) aim it at your friend
14. 14.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it flies off the string (c) it turns into a kite (d) it goes much farther
15. 15.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) it goes faster (c) no change at all (d) less friction
16. 16.🚀 Which of these goes backward? (a) the rowing boat (b) air from the balloon (c) the swimmer (d) the rocket
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) yeast (c) a balloon (d) two chairs
18. 18.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
19. 19.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) forward (d) straight down
20. 20.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
21. 21.🛟 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
22. 22.True or false: yeast is needed for the balloon rocket. (a) False (b) True
23. 23.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
25. 25.🚀 Which of these goes forward? (a) the swimmer (b) air from the balloon (c) water from the oars (d) water a swimmer pushes
26. 26.⚖️ 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 keep it the same (c) we measure it
27. 27.True or false: water a swimmer pushes goes backward. (a) True (b) False
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we measure it (c) we keep it the same
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the slope of the string (c) distance it travels (d) how big we blow it
30. 30.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
31. 31.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
32. 32.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
33. 33.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) the rocket (d) gas from the rocket
34. 34.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it speeds up (d) it travels farther
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a mirror (d) a long string
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) how big we blow it (b) the same tape (c) distance it travels
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) False (b) True
38. 38.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
39. 39.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a battery cell (c) a long string (d) a balloon
40. 40.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True

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