Science A Closer Look (Grade 3) Unit A – Living Things Chapter 1 – A Look at Living ThingsHow do living things get what they need to live and grow? Chapter 2 – Living Things Grow and ChangeHow do living things change? Unit B – Ecosystems Chapter 3 – Living Things in EcosystemsHow do living things survive in their environments? Chapter 4 – Changes in EcosystemsHow can changes affect living things and their environments? Unit C – Earth and Its Resources Chapter 5 – Earth ChangesWhat can cause Earth's features to change? Chapter 6 – Using Earth's ResourcesWhat things used by people come from Earth? Unit D – Weather and Space Chapter 7 – Changes in WeatherHow does the weather where you live change throughout the year? Chapter 8 – Planets, Moons, and StarsWhat objects move through space, and how do they move? Unit E – Matter Chapter 9 – Observing MatterWhat are some ways you can describe matter? Chapter 10 – Changes in MatterIn what ways can matter change? Unit F – Forces and Energy Chapter 11 – Forces and MotionWhat makes something move? Chapter 12 – Forms of EnergyWhat are the main forms of energy? How are they used?