Unit 1: The Scientific Method

• make observations

• ask questions

• form a hypothesis

• write procedures

• test hypothesis

• draw conclusions

Unit 2 : Earth's Systems

• describe ways the geosphere, biosphere, hydrosphere, and/or atmosphere interact • water is distributed on Earth as saltwater and freshwater

• individual communities use science ideas to protect Earth's resources and environment

Unit 3: Space Systems: Stars and the Solar System

• gravitational force exerted by Earth on objects is directed down

• the apparent brightness of the sun compared to other stars is due to their relative distances from Earth

• there are patterns in the daily changes of the appearance of shadows, in the hours of daylight, and the seasonal appearance of some stars in the night sky

Unit 4: Structure and Properties of Matter

• matter is made of particles too small to be seen

• the total amount of matter is conserved regardless of the type of change such as heating, cooling, or mixing substances

• make observations and measurements to identify materials based on their properties • determine whether the mixing of two or more substances results in new substances

Unit 5: Matter and Energy in Organisms and Ecosystems

• energy in animals´ food (used for body repair, growth, motion, and to maintain body warmth) was once energy from the sun

• plants get the materials they need for growth chiefly from air and water

• describe the movement of matter among plants (producers), animals (consumers), decomposers, and the environment