Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 639 · 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: the rocket goes forward. (a) False (b) True
2. 2.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) blow it till it bursts (d) aim it at your friend
3. 3.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes much farther (d) it goes less far
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
5. 5.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
6. 6.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) a long string (d) a mirror
8. 8.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the slope of the string (c) how big we blow it
10. 10.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
11. 11.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
12. 12.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) more friction, less far (d) it goes faster
13. 13.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it changes colour (d) it gets too heavy
14. 14.🔮 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
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a drinking straw (c) a balloon (d) a long string
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) two chairs (c) sticky tape (d) a mirror
17. 17.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the rowing boat (c) air from the balloon (d) water from the oars
18. 18.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) it never stops (d) when the air runs out
19. 19.⚖️ 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
20. 20.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a battery cell (c) a balloon (d) a drinking straw
21. 21.True or false: the swimmer goes backward. (a) False (b) True
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) how big we blow it (c) distance it travels (d) the same string
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) False (b) True
24. 24.True or false: air from the balloon goes forward. (a) True (b) False
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) sticky tape (d) turmeric powder
26. 26.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) True (b) False
28. 28.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) keep them in your mouth (d) give them to a baby
29. 29.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) backward (c) straight down (d) it stays still
30. 30.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a battery cell (c) a balloon (d) a mirror
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we change it (c) we measure it
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) False (b) True
33. 33.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
34. 34.True or false: water from the oars goes forward. (a) True (b) False
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) False (b) True
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) sticky tape (d) vinegar
37. 37.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
38. 38.⚖️ 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) distance it travels (d) the same tape
39. 39.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
40. 40.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a mirror (c) a fridge magnet (d) a sundial

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