Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 696 · 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: a long string is needed for the balloon rocket. (a) True (b) False
2. 2.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it flies off the string (d) it goes less far
3. 3.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) keep them in your mouth (d) throw them away safely
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a mirror (d) sticky tape
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) a balloon (d) vinegar
6. 6.⚖️ 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 measure it (c) we change it
7. 7.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
8. 8.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
9. 9.🚀 Which of these goes forward? (a) the balloon (b) gas from the rocket (c) air from the balloon (d) water from the oars
10. 10.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
11. 11.True or false: the rowing boat goes backward. (a) True (b) False
12. 12.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) it stays still (d) forward
13. 13.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) a magnet (c) yeast (d) a battery cell
14. 14.⚖️ 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) the same tape (d) how big we blow it
15. 15.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) water from the oars (d) the rowing boat
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) turmeric powder (c) a balloon (d) sticky tape
17. 17.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it can pop loudly (c) it gets too heavy (d) it turns into a kite
18. 18.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it speeds up (c) it goes backward first (d) it travels farther
19. 19.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) gas from the rocket (d) the rocket
20. 20.⚖️ 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 tape (c) distance it travels (d) the same straw
21. 21.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
22. 22.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) a magnet pulls it (d) escaping air pushes it
23. 23.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) two chairs (c) a balloon (d) a long string
24. 24.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) a long string (d) a magnet
26. 26.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
27. 27.True or false: the balloon goes backward. (a) True (b) False
28. 28.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
30. 30.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) keep it away from faces (d) put string round a neck
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
32. 32.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
33. 33.⚖️ 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
34. 34.⚖️ 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) True (b) False
35. 35.True or false: water a swimmer pushes goes backward. (a) False (b) True
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) two chairs (c) a drinking straw (d) a balloon
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) False (b) True
38. 38.True or false: the rocket goes backward. (a) True (b) False
39. 39.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
40. 40.⚖️ 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) distance it travels (c) the same straw

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