Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 380 · 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.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it goes much farther (d) it flies off the string
2. 2.🎈 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
3. 3.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) water from the oars (d) the rowing boat
4. 4.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
5. 5.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) a battery cell (d) two chairs
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a mirror (c) sticky tape (d) a drinking straw
7. 7.True or false: gas from the rocket goes forward. (a) True (b) False
8. 8.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) sticky tape (c) a balloon (d) a drinking straw
10. 10.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
11. 11.🚀 In “push back, move forward”, which way does the rowing boat 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.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) air from the balloon (d) the rowing boat
14. 14.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same tape (b) distance it travels (c) how big we blow it
16. 16.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) vinegar (c) turmeric powder (d) a mirror
17. 17.⚖️ 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
18. 18.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it changes colour (c) it turns into a kite (d) it gets too heavy
19. 19.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
20. 20.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) forward (c) backward (d) straight down
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we measure it (c) we keep it the same
22. 22.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) a drinking straw (d) a mirror
23. 23.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) sticky tape (c) two chairs (d) a magnet
24. 24.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) it goes faster (c) less friction (d) no change at all
25. 25.⚖️ 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) the same tape (c) how big we blow it (d) the same straw
26. 26.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a balloon rocket (c) a mirror (d) a sundial
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False
28. 28.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
30. 30.True or false: water from the oars goes backward. (a) False (b) True
31. 31.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
32. 32.⚖️ 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
33. 33.🎈 When does the balloon rocket stop? (a) when the air runs out (b) it never stops (c) when it gets cold (d) when it turns blue
34. 34.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
35. 35.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it travels less far (d) it speeds up
36. 36.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) give them to a baby (c) chew them (d) keep them in your mouth
37. 37.⚖️ 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
38. 38.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it guides the balloon (d) it holds water
39. 39.⚖️ 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 straw (c) distance it travels (d) the same string
40. 40.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed

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