Chemical Reactions and Matter
Anything that takes up space.
Matter
We need this to move and do work.
Energy
All living things need this to survive.
Energy
Living and nonliving things together in an area.
Ecosystem
Water, trees, and minerals are examples of these.
Resources
Ice melting is an example of this type of change.
Physical Change
Heat moves from warmer objects to _____ objects.
cooler
Plants make their own food and are called this.
Producers
A living part of an ecosystem.
Biotic Factor
Resources that can be replaced naturally.
Renewable
A change that makes a new substance.
Chemical Change
Heat transfer by touching.
Conduction
This process breaks food down into smaller pieces.
Digestion
Animals that eat other animals.
Predators/Consumers
Trash and harmful materials in the environment.
Pollution
Bubbles can be a sign of this.
Chemical reaction
A reaction that releases heat.
Exothermic
This gas is needed for cellular respiration.
Oxygen
This is the path energy follows when one organism eats another.
Energy that comes from the Sun.
Solar
Matter cannot be created or destroyed. This is called conservation of _____.
Energy cannot be created or destroyed.
Conservation
This sugar gives cells energy.
Glucose
The variety of living things in an area.
Biodiversity
Cutting down many trees.
Deforestation