| A | B |
|---|
| insulator | A material that does not allow electrons to move through. |
| interphase | The stage prior to mitosis. |
| introduced species | An organism that comes into an existing ecosystem - they aren't originally from. |
| ions | electrically charged particles. |
| karyotype | A blueprint of a organisms chromosomes. |
| kinetic energy | The energy of motion. |
| Kinetic Theory of Matter | The theory that all molecules are in constant random motion. |
| light year | The distance it takes light to travel in one year. |
| liquid | A state of matter that can change shape but not volume. |
| lunar eclipse | When the moon passes through the Earth's shadow. |
| lysosome | A cell organelle that digests food. |
| mass | The amount of matter in an object. |
| meiosis | The division of sex cells. |
| melting point | The temperature at which a solid turns into a liquid. |
| metabolism | The total of all chemical reactions in an organism. |
| metaphase | A stage in mitosis where the chromosomes line up in the middle. |
| meteorites | The part of the meteor that hits the earth. |
| meteor | We know this as a shooting star. |
| mitochondria | The power house of the cell. |
| mitosis | The division of the nucleus. |
| mixture | Combination of substances that can be separated by physical means. |
| molecule | Two or more atoms that combine to make a new substance. |
| mRNA | messenger RNA |
| inertia | The resistance of an object to a change in motion. |
| independent variable | What is changed in an experiment. |
