Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 961 · 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: the string slopes uphill. What happens? (a) it goes backward first (b) it speeds up (c) it travels farther (d) it travels less far
2. 2.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
3. 3.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a balloon rocket (d) a sundial
4. 4.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
5. 5.⚖️ 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
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a long string (c) a drinking straw (d) a balloon
7. 7.⚖️ 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 measure it (c) we change it
8. 8.True or false: the balloon goes forward. (a) True (b) False
9. 9.True or false: the rocket goes forward. (a) True (b) False
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) yeast (c) sticky tape (d) a long string
12. 12.⚖️ 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 string
13. 13.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
14. 14.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
15. 15.⚖️ 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
16. 16.🚀 Which of these goes backward? (a) gas from the rocket (b) the balloon (c) the rowing boat (d) the rocket
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) distance it travels (c) the same string (d) how big we blow it
18. 18.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) give them to a baby (d) throw them away safely
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we keep it the same (c) we measure it
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
21. 21.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
22. 22.True or false: the swimmer goes backward. (a) True (b) False
23. 23.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) a mirror (c) a battery cell (d) a magnet
24. 24.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) the rocket (d) gas from the rocket
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
27. 27.True or false: water from the oars goes forward. (a) False (b) True
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) the same string (c) how big we blow it (d) the same straw
29. 29.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
30. 30.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) keep it away from faces (c) blow it till it bursts (d) put string round a neck
31. 31.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) vinegar (c) a battery cell (d) turmeric powder
32. 32.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it changes colour (c) it gets too heavy (d) it turns into a kite
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we keep it the same (c) we change it
34. 34.🚀 Which of these goes forward? (a) the rowing boat (b) water a swimmer pushes (c) water from the oars (d) air from the balloon
35. 35.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
36. 36.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
37. 37.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
38. 38.True or false: gas from the rocket goes backward. (a) False (b) True
39. 39.⚖️ 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 slope of the string (c) distance it travels
40. 40.🎈 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

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