Earth's Systems
Almost all of Earth’s water is salt water in the ocean. The limited amount of freshwater is mostly found in ______________ and ______________.
glaciers and groundwater
_________ is a tiny piece of matter that is too small to see, building blocks of everything.
atoms
____________ break down dead plants/animals and returns nutrients to the soil.
decomposer
___________ is the only star in our solar system.
the sun
When water vapor is heated, it ____________________.
When water vapor is cooled, it ____________________.
Evaporates - Evaporation
Condensation
When a gas turns into a liquid, it is called _____________________________.
condesation
________ is what you observe or measure about something that helps you identify, describe, or classify it.
property
___________ only eats plants.
___________ only eats meat or other animals.
___________ eats plants and other animals.
herbivores
carnivores
omnivore
Why does the sun appear to be bigger and brighter than other stars?
The sun looks bigger and brighter because it is much closer to Earth than other stars
The ______ is the source of energy for every organism.
sun
Explain how raindrops form in the atmosphere.
Raindrops can form when water vapor gets cold and condenses into liquid water.
___________ able to dissolve in water or another liquid.
soluble
Producers create their own food from __________ molcules and ____________ molecules. Energy from the _____ turns the molecules into food.
water, carbon dioxide, sun
________ is the pull between Earth and other objects, which acts even without touching.
gravity
Name the spheres of the Earth.
_________ all the living things on Earth.
_________ all of the liquid water and ice on Earth
_________ all the rocks, minerals, and ground. (Solid part of Earth)
_________ the layer of gases (air) that surround Earth.
Biosphere
Hydrosphere
Geosphere
Atmosphere
______________ is to try something again using what you learned the last time you tried it.
Iterate
Molecule of an ____________ attract the molecules of two liquids that do not typically mix, allowing the molecules of the emulsifier and of the liquids to mix.
emulsifier
________ is the stuff that things are made of.
Matter
The earth rotates on its _______ and completes one revolution around the sun every _________ days.
A ________ is a huge object in space that gives off heat and light
What are three major causes of water shortages?
overuse, pollution (wastewater, trash, fertilizer), drought
The more a liquid’s molecules are attracted to one another, the more the liquid will ____________.
hold together, mix, dissolve
How do animals grow?
Animals grow by changing food molecules into body molecules that can build their bodies.
What determines which stars we see in the night sky?
Earth’s position in its yearly orbit determines which stars we see in the night sky.
_______ is the amount of matter (stuff) that makes up an object.
Mass