Evidence and How Science Uses It
What counts as evidence, and why scientists gather it carefully before deciding.
9 questions, free, marked as you go with a worked explanation on every one.
What this covers
- evidence in science
The questions
- What is evidence in science?
- You are testing whether plants grow taller with more light. What should you keep the same?
- Which of these make an investigation more trustworthy? Select all that apply.
- Your results do not match what you predicted. What is the best response?
- Why do scientists share their results with other scientists?
- Which of these is an observation rather than an opinion?
- Two students measure the same table. One records it as 4 hands long, the other records it as 96 centimetres. Why is the second record better evidence?
- A student rolls the same toy car down the same ramp three times and records how far it travels: 62 cm, 58 cm and 66 cm. What is the difference between the longest and the shortest distance, in centimetres?
- Use the table. A student measured the same kind of plant grown under the same conditions four times. Which trial's result looks like something went wrong, rather than real evidence of typical growth?