Science Olympics Brain Ouiz

1. when there are no more individuals of that species alive anywhere in the world - the species has died out.
4. an influence (as a push or pull) that tends to produce a change in the speed or direction of motion of something
5. a form of matter in which the molecules are tightly packed together, it does not flow or take the shape of its container
6. the bending of light as it goes through an object
7. a plant-eating animal
12. an neutral atomic particle
13. a form of matter that takes the shape of its container and flows easily
15. an animal adaptation in which the organism blends in with its surroundings
16. threatened with extinction
17. a substance that cannot be broken down into simpler substances by chemical means - composed of atoms
18. any organism that is able to live both on land and in water; a class of cold-blooded vertebrate animals
20. the process by which plants make food
22. ability to do work; can exist in a variety of forms, such as electrical, mechanical, chemical, thermal, or nuclear
24. any of a group of cold-blooded air-breathing vertebrates that usually lay eggs and have skin covered with scales or bony plates
25. all things are made up of this

2. a plant or animal that that eats another living thing
3. the complete path of an electric current
6. light bouncing off of an object
8. a major type of ecological community e.g. desert, forest
9. organism that eats both plants and other animals
10. a living thing (as a green plant) that makes its own food
11. an elementary particle that has a negative charge of electricity and travels around the nucleus of an atom
14. a substance changing from a gaseous state into a liquid state
19. a system made up of an ecological community of living things interacting with their environment especially under natural conditions
21. ____________ rock is a rock that forms from cooling magma (lava)
23. the smallest particle of an element that has the properties of the element and can exist either alone or in combination