Biology is the Biology is the scientificscientific study study of life.of life.

But what does “scientific” mean?Science = Latin meaning “to know”Doing science = finding out about

nature Asking questions Searching for answers

Two Ways to Do ScienceTwo Ways to Do Science

Discovery Science = Describing Nature

Example – Tadpoles change into frogs

Hypothesis-based Science = Explaining Nature

Example – Do frogs like flies better than other insects?

Discovery Scientists Observe Discovery Scientists Observe NatureNatureJane Goodall learned about chimpanzees in

East Africa

Discovery ScienceDiscovery ScienceMake observations by using your

5 senses:

See, Hear, Smell, Taste, and Feel

Come up with inferences based on your observations

Observations can be…Observations can be…Qualitative (using

words) Color Comparisons Descriptions

Quantitative (numbers) Weight Height Number of leaves

PRACTICE - Discovery PRACTICE - Discovery ScienceScienceWhat observations can you make?What inferences can you make?

www.phsucsessnet.com

PRACTICE - Discovery PRACTICE - Discovery ScienceScienceWhat observations can you make?

What inferences can you make?

Hypothesis-Based Scientists Hypothesis-Based Scientists

Explain NatureExplain NatureIt always starts with a problem…

Why isn’t my iPod working?

Hypothesis-Based Scientists Hypothesis-Based Scientists

Explain NatureExplain NatureThen you research what’s wrong…

Hypothesis-Based Scientists Hypothesis-Based Scientists

Explain NatureExplain NatureThen you make a hypothesis…

If I turn it off and then turn it on, maybe it will fix the problem.

Hypothesis-Based Scientists Hypothesis-Based Scientists

Explain NatureExplain NatureThen you experiment on it… TRY IT OUT!

Hypothesis-Based Scientists Hypothesis-Based Scientists

Explain NatureExplain NatureThen you collect data

“Turning it off and on did not fix the problem.”

Hypothesis-Based Scientists Hypothesis-Based Scientists

Explain NatureExplain NatureThen you analyze the data

“Turning it on and off didn’t work, so… I’ll have to try something else!”

Hypothesis-Based Scientists Hypothesis-Based Scientists

Explain NatureExplain NatureFinally, you make a conclusion and you share it with everyone!

So, Hypothesis-Based So, Hypothesis-Based Science…Science…

Problem

Research

Hypothesis

Experiment

Data Collection

Analysis

Conclusion

How do I remember the How do I remember the order?order?

People

Rob

Houses

Even

Directly

After

Church

PRACTICE – Analyzing PRACTICE – Analyzing DataDataWhat do you think the experiment was about?