Unit 1 Lesson 1 How Do Scientists Investigate Questions? Copyright © Houghton Mifflin Harcourt...
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Transcript of Unit 1 Lesson 1 How Do Scientists Investigate Questions? Copyright © Houghton Mifflin Harcourt...
Unit 1 Lesson 1 How Do Scientists Investigate Questions?
Copyright © Houghton Mifflin Harcourt Publishing Company
Unit 1 Lesson 1 How Do Scientists Investigate Questions?
Florida Benchmarks
Copyright © Houghton Mifflin Harcourt Publishing Company
• SC.3.N.1.1 Raise questions about the natural world, investigate them individually and in teams through free exploration and systematic investigations, and generate appropriate explanations based on those explorations.
• SC.3.N.1.6 Infer based on observation.
• SC.3.N.3.1 Recognize that words in science can have different or more specific meanings than their use in everyday language; for example, energy, cell, heat/cold, and evidence.
Unit 1 Lesson 1 How Do Scientists Investigate Questions?
Florida Benchmarks
Copyright © Houghton Mifflin Harcourt Publishing Company
• SC.3.N.3.2 Recognize that scientists use models to help understand and explain how things work.
• SC.3.N.3.3 Recognize that all models are approximations of natural phenomena; as such, they do not perfectly account for all observations.
Unit 1 Lesson 1 How Do Scientists Investigate Questions?
What Is Science?
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• Science is a way of looking at the world and thinking about it.
• Scientists ask questions about the world.
• Scientists do investigations to answer their questions.
Unit 1 Lesson 1 How Do Scientists Investigate Questions?
What Is Science?
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• Some science investigations are simple, such as watching animals play.
• Some science investigations take a lot of planning.
• When you ask questions and plan investigations to answer them, you act like a scientist.
Unit 1 Lesson 1 How Do Scientists Investigate Questions?
What Do You See?
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• When you use your senses to notice details, you observe.
• When you infer, you offer an explanation of what you observed.
Unit 1 Lesson 1 How Do Scientists Investigate Questions?
What Do You See?
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• Make observations about the objects in this picture. Then make observations about the objects in your classroom.
Unit 1 Lesson 1 How Do Scientists Investigate Questions?
Getting Answers!
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• Not all questions are science questions.
• Science questions can be answered in many ways.
• Two ways to answer science questions are exploring and investigating.
Exploring
• When you explore, you make observations of the world around you.
• When you explore, you may predict what will happen when you do something.
• When you predict, you use what you know to guess what will happen in the future.
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Unit 1 Lesson 1 How Do Scientists Investigate Questions?
Exploring
• You can use observations to classify, or group, objects.
• For example, you could classify objects by whether they sink or float in water.
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Unit 1 Lesson 1 How Do Scientists Investigate Questions?
Investigating
• In science, an investigation is a planned way of answering science questions.
• When you do an investigation, you may ask cause-and-effect questions.
• In an investigation, you may use models. Models represent real objects but are easier to study.
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Unit 1 Lesson 1 How Do Scientists Investigate Questions?
Unit 1 Lesson 1 How Do Scientists Investigate Questions?
Investigating Answers
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• There are many steps a scientist may take during an investigation.
• Five steps in science investigations are asking a question, hypothesizing, predicting and planning, experimenting, and drawing conclusions.
• Scientists may use some or all steps during an investigation.
Ask a Question
• Many science investigations start with a question. Ask a science question about the things in the picture.
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Unit 1 Lesson 1 How Do Scientists Investigate Questions?
Hypothesize
• A hypothesis is a possible answer to a science question.
• You have to be able to test a hypothesis.
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Unit 1 Lesson 1 How Do Scientists Investigate Questions?
Predict and Plan an Investigation
• Predict what you will observe if your hypothesis is correct.
• Plan an investigation to test your hypothesis.
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Unit 1 Lesson 1 How Do Scientists Investigate Questions?
Experiment
• In science, an experiment is a test you do to gather evidence.
• In an experiment, only one thing should change at a time. The thing that changes is the variable.
• When you do an experiment, you make observations you can use to test your hypothesis.
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Unit 1 Lesson 1 How Do Scientists Investigate Questions?
Draw Conclusions
• After you do your investigation, study your results.
• Draw a conclusion about your results. Ask yourself, “Do the results support my hypothesis?”
• Share your conclusion with others.
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Unit 1 Lesson 1 How Do Scientists Investigate Questions?