Exploring the Investigative World of Science
Class 8 · Science
3 ideas in Class 8 Science, explained in plain words, with games and quizzes to practise.
Planning a Fair Investigation
Part of: Investigating a Question
An investigation starts with a question that can be explored. To test one possible cause fairly, change that factor while keeping the other conditions the same.
Why it matters. If several things change at once, it is hard to tell what caused the result.
Try it in two minutes
- Ask what you want to find out.
- Choose one factor to change.
- Keep the other conditions alike.
- Decide what result to observe.
Try at home. Plan a safe test of how a paper shape falls, changing only its width.
Observing and Recording Evidence
Part of: Evidence from Observation
Science uses what we can observe or measure. A result may be a yes-or-no observation or a measurement such as the time an event takes.
Why it matters. Clear notes make it easier to compare trials and ask a better next question.
Try it in two minutes
- Decide what you will observe.
- Use a consistent way to record it.
- Compare results from each trial.
Try at home. Observe a shadow at two times and record what changed.
Science Begins with Curiosity
Part of: Curiosity in Science
Science can begin with a question about an everyday event. A focused question suggests something to vary and an outcome to observe.
Why it matters. Curiosity helps learners move beyond guessing toward evidence.
Try it in two minutes
- Notice an event.
- Ask a focused how or why question.
- Think of a condition to test.
- Choose an observation that could help answer it.
Try at home. Pick an everyday change and write one question you could explore safely.
What your child will practise
- Observing and Recording Evidence: Desert Puzzle (Clue Puzzle)
- Observing and Recording Evidence: Mission Control Quest (Collect the Answer)
- Observing and Recording Evidence: Ocean Quick Fire (Quick Fire)
- Planning a Fair Investigation: Explorer'S Map Sort (Sort It Out)
- Science Begins with Curiosity: Candy Quick Fire (Quick Fire)
- Quiz: Observing and Recording Evidence (8 questions)
- Quiz: Planning a Fair Investigation (8 questions)
- Quiz: Science Begins with Curiosity (8 questions)