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🔬 Science - Class 8
Unit 1 · Scientific Learning

Scientific Test Presentation

ScienceSubject
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Science and Technology, Class 8

Scientific Test

From guess to conclusion · Using litmus paper · Writing the report

What You Will Be Able To Do

👁️

Say where observation stops

💭

Explain what a hypothesis is

🧪

Sort acid, base and salt with litmus

📝

Write the report of a test

Observation and Testing

👁️Observation
Only what the senses pick up
Carries us as far as a guess
Leaves the answer unsettled
VS
🧪Testing
A definite scientific procedure
Checks whether the guess is right
Gives a conclusion with a reason

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Presenter notes: Today the class covers the difference between observing and testing, what a hypothesis is, the litmus test for acid, base and salt, and the format of a report.