Earth's Systems
These four spheres are Earth's systems that interact with each other.
What are the hydrosphere, atmosphere, geosphere, and biosphere?
This is the star at the center of our solar system that provides light to Earth.
What is the Sun?
This is anything that has mass and takes up space.
What is matter?
This organism makes its own food using sunlight.
What is a producer?
When 25 grams of sugar is dissolved into 150 grams of water, this is the resulting weight of the mixture.
What is 175 grams?
This percentage of Earth's water is salt water.
What is 97%?
These daily events are caused by Earth rotating on its axis every 24 hours.
What is day and night?
These are the three common forms of mater.
What are solid, liquid, and gas?
This is the source of all energy and food that we consume.
What is the sun or sunlight?
This is the path Earth follows as it travels around the Sun.
What is an orbit?
All of the living things on earth and effects all of Earth's other spheres.
What is the biosphere?
This is why we do not see the same stars in the sky throughout the whole year.
What is Earth's orbit around the sun?
When you cut a piece of paper into smaller pieces, this type of change has occurred because the substance stays the same.
What is a physical change?
This type of organism breaks down dead plants and animals and returns nutrients to the soil.
What is a decomposer?
This type of property can be observed without changing the substance, like color or odor.
What is a physical property?
Most of Earth's fresh water can be found in these places.
What are glaciers, lakes, rivers, and ground water?
These are patterns of stars in the sky that people have named and used for navigation.
What are constellations?
Burning wood is an example of this type of change because a new substance is formed.
What is a chemical change?
This shows how energy moves from one organism to another in an ecosystem.
What is a food chain?
This phase of the Moon occurs when we can see the entire illuminated side from Earth.
What is a full moon?
These are areas where algae blooms grow because of polluted runoff that reaches the ocean.
What are dead zones?
During different seasons, shadows change in length because of this feature of Earth and its motion around the Sun.
What is Earth's tilt on it's axis?
Even when matter changes form, the mass always stays the same, according to what law?
What is the law of conservation of matter?
This is where plants get the materials they need for growth.
What is air and water?
If a predator is removed from a food web, this may happen to the population of its prey.
What is increase?