A
A star system containing from millions to billions of stars.
Galaxy
The sum total of God's physical creation. It consists of all matter, space, and energy that exists, also known as the cosmos.
Universe
The oval-shaped path that planets follow as they revolve around the sun, as discovered by Kepler.
Elliptical Orbit
Outermost layer where we live, containing minerals, fossil fuels, and soil.
Crust
What causes surface currents in the ocean?
Surface currents are primarily caused by wind blowing the water across the surface of the ocean.
A ball of tremendously hot gas which produces heat and light from nuclear reactions within its core.
Star
A star or a giant ball of hot gas.
Sun
A chunk of frozen gas and dirt that follows an orbit.
Comet
Semi-solid rock layer beneath the crust, responsible for slow movement causing volcanic eruptions and earthquakes.
Mantle
How do deep ocean currents form?
Deep ocean currents form because colder, saltier water is heavier and sinks, causing movement in the water.
A pattern that a group of stars seems to make in the sky.
Constellation
Explain the significance of Polaris (North Star).
Polaris is significant because it remains nearly stationary in the sky while other stars move around it, making it a reliable guide for finding the north. It has been an essential tool for navigation throughout history.
A celestial body in orbit around a planet.
Moon
A large community of plants and animals that occupies a distinct region defined by its climate, vegetation, and animal life.
Biome
Where are glaciers found?
Glaciers can be found on the highest mountains and near the poles.
What makes up the solar system?
The solar system consists of the sun and the planets that orbit around it.
The bright trail left by a meteoroid as it burns while falling through Earth’s atmosphere.
Shooting Star
What is Newton's Law of Universal Gravitation?
Newton’s law says every object pulls on every other object, and the strength depends on their size and distance apart.
The natural environment in which an organism lives, including the conditions of food, shelter and climate.
Habitat
How do glaciers form?
Glaciers begin in high, cold places, such as mountains. Layers of fallen snow compact into hard ice. As more snow falls on top of the ice, the ice mass gets heavier and begins to move down the mountain. As it moves down the mountain, it slowly melts.
What causes sunspots?
Sunspots are dark areas on the sun, which are caused by the sun's magnetic field.
An astronomer who used the telescope to prove that the Earth and other planets move around the Sun.
Galileo Galilei
The __________ of the Earth is its innermost layer, made of solid and molten metals, generating the planet's magnetic field.
Core
What are the three layers of the Earth?
The crust, the mantle, and the core
What are some clues that let you know a glacier was once present in a valley?
You can know a valley once had a glacier by its deep, rounded, U-shape and by the moraine hills and other debris markers found in it