Science Class 8
Exploring the Investigative World of Science
Test a guess fairly, compare it properly, and say what the evidence really shows.
9 lessons · ~44 min total
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Lessons in this topic
- 0 Start here A roadmap: six parts of an investigation, and the mistake each one rules out. · 3 min You are here
- 1 A guess you can test A hypothesis is a claim a test could show wrong. It names something you can observe or measure. · 5 min
- 2 Change one, keep the rest the same Change one thing between two tests and keep the rest the same. Then the changed thing is the cause you test. · 5 min
- 3 Something to compare with A result on its own tells you little, so run a second group that is left alone. · 5 min
- 4 Write it down as you go Write down what you see while you work. A conclusion may use only what is on the sheet. · 5 min
- 5 Supports, goes against, or says nothing A record can fit a claim, go against it, or say nothing about it. · 5 min
- 6 Plan it before you start A plan names the claim, the one thing to change, what to keep the same, and what to observe. · 5 min
- 7 The big picture Six parts of an investigation, and the one mistake each of them rules out. · 4 min
- 8 Track quiz The six rules the benches apply, then eight questions on investigating. · 7 min
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