Table of Contents

Scientific Investigation

Scientists and Society

How Science Changes

Models as Tools in Science

The World of Science

Scientific Investigation

Sprouted SeedsScientists often use graphs to analyze the evidence collected during an experiment. This graph shows how many radish seeds sprouted over time at two different temperatures.

Galileo GalileiWhat is the order of events that led to Galileo’s house arrest?

Scientists and Society

How Science Changes

Scientific KnowledgeEinstein’s work contributed to scientific knowledge about the sun and other stars.

Models as Tools in Science

Two Science ModelsModels may be three-dimensional objects or equations. Explain how each of these models represents an object or a process and why each is useful.

Models as Tools in Science

An Everyday SystemIn a flashlight, many parts work together as a system. Share what you know to explain why a flashlight is a good example of a system.

Models as Tools in Science

A Basic ModelIn this model of a food chain in the Florida Everglades, the algae make food using the sun’s energy. Algae are tiny living things that make their own food.

Models as Tools in Science

A Model of a Simple SystemThis model of an Everglades food web contains overlapping food chains.

Models as Tools in Science

How Arctic Sea Ice MeltsThe Arctic sea-ice system can be modeled by a diagram. What is the input, process, and output in this model?

Models as Tools in Science

A Model of the Scientific CommunityThe work of scientists can be modeled in a diagram. In which part of the diagram would you put each term?