Plants get the materials they need for growth chiefly from these two things.
What is air and water?
An organism that consumes only meats is this.
What are a carnivore?
This part of the water cycle is basically puddles disappearing like magic.
What is evaporation?
This happens when heat moves by touching, like when you grab a hot spoon and instantly regret it.
What is conduction?
Oceans, lakes, rivers, glaciers, ground water, and polar ice caps are all part of this.
What is the hydrosphere?
An organism that consumes meats and plants is this.
What is an omnivore?
The repeating pattern of day and night is caused by this movement of Earth
What is Earth’s rotation?
Even when wood burns and turns into ash, smoke, and gases, scientists say matter is still conserved because it cannot be created or this.
What is destroyed?
If you go far enough down the food chain, food of any kind of animal can be traced back to a_____.
What is plant?
Earth spins on this imaginary line, even though nobody can actually trip over it.
What is Earth’s axis?
An organism that consumes only plants is this.
What is an herbivore?
This tool helps scientists look at tiny things that would never fit in your selfie camera.
What is a microscope?
This property of matter explains why bowling balls and marshmallows definitely can not be thrown the same way.
What is mass?
This process slowly breaks rocks into smaller pieces — Earth’s version of crushing cookies into crumbs.
What is weathering?
When wolves were reintroduced to Yellowstone, populations of some animals changed because the wolves were a ______________in this ecosystem.
What are a keystone species?
This gas makes up most of Earth’s atmosphere, even though oxygen gets all the attention.
What is nitrogen?
This state of matter has no definite shape or volume.
What is gas?
These tiny openings on leaves allow gases like oxygen and carbon dioxide to move in and out of plants.
What are stomata?
A student notices puddles disappear after a sunny day and clouds form later. These observations are both part of this repeating Earth process.
What is the water cycle?
What is a food web?
This marine invertebrate echinoderm can regrow a lost arm and still look fabulous at the beach.
What is a starfish?