Study

SC06 - Unit 4 - Lesson 4

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substance

only liquid

material or matter

living thing

toxic

dangerous or poisonous

natural or clean

helpful or useful

accumulate

disappear quickly

build up or increase over time

stay the same

food chain

way to store food

group of restaurants

system showing who eats whom

consumer

plant that makes food

person who buys food

animal that eats other living things

predator

animal that hunts and eats others

animal that eats plants

animal that is hunted

harm

to make something better

to clean or protect something

to hurt or damage something

environment

only the air and water

everything that surrounds living things

only animals and plants

pesticide

machine for farming

chemical that kills insects and pests

food for plants

break down

move faster

become stronger

become smaller or simpler