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science vocab
Term | Definition |
---|---|
Melting | the process of changes matter from a solid to a liquid by ADDING HEAT ENERGY. |
Freezing | the process of changing matter from a liquid to a solid by TAKING AWAY HEAT ENERGY. |
Boiling Point | the temperature at which a liquid changes to a vapor or gas. |
Melting Point | The temperature at which a solid becomes a liquid. |
Molecule | A group of two or more atoms linked together by sharing electrons in a chemical bond. |
Volume | The amount of space an object takes up. |
Physical Change | a change in the size,shape, or state of matter with no new matter being formed.One example is water changing from ice to liquid water to steam. A physical change can be reversed. |
Chemical Change | a change that occurs when chemical bond are broken.An example is fire.A chemical change can not be reversed. |
Matter | anything that takes up space. |
Mass | The concentration of matter in an object. |