Evidence & Research

When someone makes a claim, smart thinkers ask: 'What's the proof?' Evidence is information that helps you decide if something is true or false.

Can you always trust what you see? Optical illusions trick your eyes! Sometimes you need more than just observation — you need multiple types of evidence.

A doctor's medical advice vs a random internet post — which is more reliable? Sources have different levels of trustworthiness. Learn to rank them!

'Goldfish have a 3-second memory.' Is this actually true? (No! Goldfish can remember things for months.) Let's practice fact-checking common 'facts.'

'My friend said so' = weak evidence. 'A study of 1,000 people showed...' = strong evidence. Not all evidence is equally convincing. Learn the difference!

A diary from 1865 is a PRIMARY source — the original. A history book about 1865 is a SECONDARY source — someone's interpretation. Both are useful, but differently.

Charts, graphs, and tables contain evidence. Can you read them correctly? Sometimes data is presented in misleading ways. Learn to spot tricks in data presentation.

A candy company's study says 'candy is healthy.' Hmm. When the source has something to GAIN, their evidence might be biased. Always ask: 'Who paid for this research?'

Scientists don't just observe randomly. They form a hypothesis, design an experiment, collect data, and draw conclusions. This systematic approach produces the strongest evidence.

'My grandpa smoked and lived to 95!' That's an anecdote. 'Smoking reduces life expectancy by 10 years on average.' That's data. Data is more reliable than individual stories.

If only ONE source reports something, be skeptical. If FIVE independent sources confirm it, you can be more confident. Cross-referencing is essential for good research.

How to spot fake news: Check the source. Read beyond the headline. Check the date. Look for evidence. Check other sources. Reverse-image search photos. These skills are ESSENTIAL.

Like a lawyer, build a case for your position. Present your evidence in order from weakest to strongest. End with your most convincing piece. This structure persuades people.

How do we know what happened 2,000 years ago? Artifacts, documents, buildings, and other evidence! Historians are like detectives of the past.

'9 out of 10 dentists recommend this toothpaste.' But how many dentists were asked? 10? 1,000? Sample size matters! Learn to question statistics.

Scientists check each other's work through peer review. Before a study is published, other scientists verify the methods and conclusions. This catches errors and fraud.

Instead of deciding based on feelings or habits, use EVIDENCE. Compare product reviews, look at data, check track records. Evidence-based decisions are better decisions.

Using multiple sources, investigate: How does sugar affect the body? Is it ALL bad? How much is okay? Practice gathering evidence and forming a balanced conclusion.

Like detectives in movies, create an evidence board for any topic. Pin up sources, data, quotes, and connections. Visual organization helps you see the full picture.

Compile your best evidence-finding work. Which sources were most reliable? What surprised you? How have your research skills improved? Reflect on your growth as a researcher.