.1.1Study:The Big Bang Theory / Study Sheet
Earth Science Core (S2157608) / Name: ______
Date: ______

Use the spaces below to take notes on the key concepts presented in this study.

Main Idea #1: Light takes time to reach Earth, and the characteristics of light change as objects in the universe are constantly expanding outward.

Main Idea #2: Scientific evidence theorizes that all of the matter and energy in the universe compressed into a tiny, dense ball, and then exploded outward during the Big Bang.

2.1.2Study:Galaxies / Study Sheet
Earth Science Core (S2157608) / Name: ______
Date: ______

Use the spaces below to take notes on the key concepts presented in this study.

Main Idea: The universe came together into groups of stars, known asgalaxies, through the force of gravity.

2.1.3Study:Star Life Cycles / Study Sheet
Earth Science Core (S2157608) / Name: ______
Date: ______

Use the spaces below to take notes on the key concepts presented in this study.

Main Idea #1: Stars are extremely dense masses that are so hot that nuclear fusion occurs within them.

Main Idea #2: When fuel is burned from within a star, it disrupts stellar equilibrium. The total mass of a star will help determine its life cycle.

Main Idea #3: Nebulae left over from a star’s death will collapse under their own gravity to form another star.

2.2.1Study:Planet Formation / Study Sheet
Earth Science Core (S2157608) / Name: ______
Date: ______

Use the spaces below to take notes on the key concepts presented in this study.

Main Idea #1: Gravity attracts matter together to create solar systems.

Main Idea #2: An object orbiting around another object will take an elliptical path.

2.2.2Study:Comets and Asteroid Belts / Study Sheet
Earth Science Core (S2157608) / Name: ______
Date: ______

Use the spaces below to take notes on the key concepts presented in this study.

Main Idea: Objects other than planets and moons orbit the sun.

2.3.1Study:Here Comes the Sun / Study Sheet
Earth Science Core (S2157608) / Name: ______
Date: ______

Use the spaces below to take notes on the key concepts presented in this study.

Main Idea: The sun provides Earth with a tremendous amount of energy, in the form of photons, that it creates through nuclear fusion.

2.3.2Study:The Inner Rocky Planets / Study Sheet
Earth Science Core (S2157608) / Name: ______
Date: ______

Use the spaces below to take notes on the key concepts presented in this study.

Main Idea: The planets closest to the sun are called theterrestrial planetsbecause they are made of rock.

2.3.4Study:The Gas Giants and Pluto / Study Sheet
Earth Science Core (S2157608) / Name: ______
Date: ______

Use the spaces below to take notes on the key concepts presented in this study.

Main Idea: The planets formed farther from the sun than Mars are very large, with a lot of gravity and atmospheres primarily composed of hydrogen, helium, and ice.

2.4.1Study:The Moving Earth / Study Sheet
Earth Science Core (S2157608) / Name: ______
Date: ______

Use the spaces below to take notes on the key concepts presented in this study.

Main Idea #1: The model of how our solar system moves has changed with the advancements of technology and evidence.

Main Idea #2: Earth is constantly moving through space within our solar system.

Main Idea #3: The seasons and day length we experience on Earth are caused by the tilt of Earth’s axis of rotation.

2.4.3Study:The Living Planet / Study Sheet
Earth Science Core (S2157608) / Name: ______
Date: ______

Use the spaces below to take notes on the key concepts presented in this study.

Main Idea: Specific characteristics make Earth habitable for life.

2.4.4Study:The Moon / Study Sheet
Earth Science Core (S2157608) / Name: ______
Date: ______

Use the spaces below to take notes on the key concepts presented in this study.

Main Idea #1: The moon orbits Earth.

Main Idea #2: The sun, moon, and Earth block one another as they orbit.

Main Idea #3: The moon can exert a gravitational pull on Earth.