Unit 1 Lesson 5 What Kinds of Models Do Scientists Use? Copyright © Houghton Mifflin Harcourt Publishing Company

Unit 1 Lesson 5 What Kinds of Models Do Scientists Use? Florida Benchmark SC.4.N.3.1 Explain that models can be three dimensional, two dimensional, an explanation in your mind, or a computer model. Copyright © Houghton Mifflin Harcourt Publishing Company

Unit 1 Lesson 5 What Kinds of Models Do Scientists Use? Models and Science In science, a model represents something real that is too big, too small, or has too many parts to investigate directly. A mental model is a picture you create in your mind. Copyright © Houghton Mifflin Harcourt Publishing Company

Unit 1 Lesson 5 What Kinds of Models Do Scientists Use? Models and Science A two-dimensional model has length and width. It can be a drawing, a diagram, or a map. Copyright © Houghton Mifflin Harcourt Publishing Company

Other Models Scientists Use Unit 1 Lesson 5 What Kinds of Models Do Scientists Use? Other Models Scientists Use Three-Dimensional Models A three-dimensional model has length, width, and height. A scale model tells how much smaller or bigger the model is than the real thing. Model trains often are scale models. Copyright © Houghton Mifflin Harcourt Publishing Company

Other Models Scientists Use Unit 1 Lesson 5 What Kinds of Models Do Scientists Use? Other Models Scientists Use Computer Models A computer model is a computer program that models an event or object. Some computer models make you feel like you are actually moving through space. Copyright © Houghton Mifflin Harcourt Publishing Company

Weather Models Save Lives Unit 1 Lesson 5 What Kinds of Models Do Scientists Use? Weather Models Save Lives Data from Space Satellites circle our planet 24 hours a day, sending images and other weather data back to Earth. This data is called real-time data because scientists see the pictures almost as soon as they are taken. Copyright © Houghton Mifflin Harcourt Publishing Company

Unit 1 Lesson 5 What Kinds of Models Do Scientists Use? Using Models Scientists use satellite data to make computer models of weather. They model hurricanes, tornadoes, and thunderstorms. The models are used to predict how and where storms will start. Copyright © Houghton Mifflin Harcourt Publishing Company

Weather Models Save Lives Unit 1 Lesson 5 What Kinds of Models Do Scientists Use? Weather Models Save Lives Getting the Word Out Weather reporters use two-dimensional maps for TV viewers and Internet users. The maps often show where bad weather is and the path it is traveling. Copyright © Houghton Mifflin Harcourt Publishing Company

Review Lesson Five Quiz Unit 1 Lesson 5 What Kinds of Models Do Scientists Use? Review Lesson Five Quiz Josiah looks at a photograph of a tadpole. He wonders how the tadpole’s body changes as the tadpole grows. What type of model would be most useful for Josiah to observe? A computer animation that follows a frog through its life cycle. Copyright © Houghton Mifflin Harcourt Publishing Company

Review Lesson Five Quiz Unit 1 Lesson 5 What Kinds of Models Do Scientists Use? Review Lesson Five Quiz Jhamal plans to create a model of a coral reef. What must the scientist do when building the model? Include the most important parts. Copyright © Houghton Mifflin Harcourt Publishing Company

Review Lesson Five Quiz Unit 1 Lesson 5 What Kinds of Models Do Scientists Use? Review Lesson Five Quiz Jaylyn, a scientist use different models depending on the subject they are studying. What is true about all models? Models are made by humans. Copyright © Houghton Mifflin Harcourt Publishing Company

Review Lesson Five Quiz Unit 1 Lesson 5 What Kinds of Models Do Scientists Use? Review Lesson Five Quiz Marvyne thinks about how to plant a garden. He imagines where the garden will be. He pictures what will grow in his garden and where. Next, Marvyne draws a picture of his garden. What is he doing? He is creating a two-dimensional model from a mental model. Copyright © Houghton Mifflin Harcourt Publishing Company

Review Lesson Five Quiz Unit 1 Lesson 5 What Kinds of Models Do Scientists Use? Review Lesson Five Quiz Julian reads that a bird’s bones are hollow, but strong. He wants to build a three-dimensional model of a bird. Which material would be his choice to use for bones in his model? Drinking Straws Copyright © Houghton Mifflin Harcourt Publishing Company