Science Experiments Final Test Worksheet

Science experiments lesson 30: Final test: science experiments and STEM · Set 101 · 40 questions

What you do (Find the experiment, use the idea): 1. Read the question and find its experiment. 2. Use that experiment’s science idea. 3. For a fair test: one thing changed, the rest kept the same, one thing measured. 4. For safety: an adult helps, nothing goes in the mouth, no heat, sharp tools or plug points for children.

1. 1.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
2. 2.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) yeast (c) a glass of water (d) a magnet
3. 3.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a balloon (c) a glass of water (d) a white flower
4. 4.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) yeast (b) soap solution (c) white paper strips (d) water
5. 5.🧺 Do we need a clear glass of water for the water rainbow? (a) needed (b) not needed
6. 6.🔬 Which step of the scientific method is this: “Which paper shape holds the most coins?” (a) conclusion (b) hypothesis (c) experiment (d) question
7. 7.True or false: reading the steps first is an unsafe habit. (a) False (b) True
8. 8.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it lights up (c) it hardly works (d) it becomes a magnet
9. 9.⚖️ A ruler balances on a pencil at its middle. You place 3 coins 4 cm to the left of the pencil and 2 coins on the right. How many cm from the pencil must the right-hand coins go to balance it?
10. 10.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) a temple dome (c) a bridge truss (d) an electric tower
11. 11.🌈 How many colours do we name in a rainbow (VIBGYOR)?
12. 12.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
13. 13.🫗 How do we separate sugar from sugar water? (a) sieving (b) handpicking (c) evaporating (d) winnowing
14. 14.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a balloon (c) sheets of paper (d) two books
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a clean glass (d) a magnet
17. 17.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) baking soda water (d) salt water
18. 18.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) yeast (c) a clear glass of water (d) bright sunlight
19. 19.🧺 Do we need a shallow dish for growing salt crystals? (a) not needed (b) needed
20. 20.⚖️ Why is it easier to open a tin lid with the handle of a spoon? (a) the spoon is hot (b) the lid gets softer (c) the spoon is magnetic (d) a lever boosts your push
21. 21.True or false: give out water vapour is a job of the leaves. (a) False (b) True
22. 22.🔬 How many steps are there in our scientific method (question to conclusion)?
23. 23.🧺 Which of these is needed for growing salt crystals? (a) a shallow dish (b) a mirror (c) yeast (d) a balloon
24. 24.🔦 Which of these is translucent? (a) your hand (b) a book (c) a steel plate (d) tissue paper
25. 25.🕰️ A pendulum takes 1 second for one swing. How many swings does it make in 12 seconds?
26. 26.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) to make it heavy (c) so it looks shiny (d) so light reaches the eye
27. 27.⚖️ Fair test — does moving the coins farther from the pencil make that side go down more? Which of these is the one thing we change? (a) distance from the pencil (b) the same ruler (c) the number of coins (d) where the pencil is
28. 28.⚖️ A ruler balances on a pencil at its middle. You place 3 coins 2 cm to the left of the pencil. How many coins must you place 3 cm to the right to balance it?
29. 29.🔍 Which is the odd one out? (a) a flower stem (b) a cotton thread (c) a piece of foil (d) a paper towel
30. 30.True or false: putting things in mouth is an unsafe habit. (a) False (b) True
31. 31.⚖️ Fair test — does moving the coins farther from the pencil make that side go down more? What do we do with “the same ruler”? (a) we measure it (b) we keep it the same (c) we change it
32. 32.🛟 Which rule keeps the turmeric test safe? (a) sniff each bottle hard (b) use only kitchen items (c) mix bathroom cleaners (d) sip each liquid
33. 33.🧺 Three of these are needed for the magnet test. Which one is NOT needed? (a) a bar magnet (b) test objects (c) a results chart (d) a mirror
34. 34.True or false: a magnet is something yeast needs. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) thermocol bits (b) tiny paper bits (c) puffed rice (d) a steel spoon
36. 36.🛟 Where should you keep the crystal dish while it dries? (a) on the edge of a table (b) next to the baby (c) safe from small children (d) in a busy doorway
37. 37.🟡 Which of these turns turmeric reddish-brown? (a) lemon juice (b) soap solution (c) vinegar (d) plain water
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we keep it the same (c) we change it
39. 39.🛟 Which of these is a safe habit? (a) touching a hot iron (b) asking an adult first (c) mixing random liquids (d) working with no adult
40. 40.True or false: a ruler is not needed for the periscope. (a) True (b) False

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