Balloon Rocket STEM Worksheet

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

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