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U6 Science
Our skin
| Term | Definition |
|---|---|
| stretch | expand and become longer |
| weigh | to be of a certain weight |
| on average | usually; typically |
| organ | each one of the parts of our bodies which has a particular function, e.g. the heart, lungs, liver, etc. |
| layer | a thin flat area, usually lying above or below another |
| outer | on the outside |
| epidermis | the outer layer of the skin |
| cell | a tiny structure which makes up all living things |
| keratin | a protein found in our skin, nails, hair, etc. |
| strengthen | make sth stronger |
| waterproof | not allowing water to pass through it |
| melanin | a dark substance found in our skin, hair and eyes which gives them their colour |
| darken | make sth darker in colour |
| shield | protect |
| dermis | the middle layer of our skin |
| elastic | able to stretch |
| inner | being on the inside |
| hypodermis | the bottom layer of our skin |
| store | keep sth in order to use it later |
| fat | a soft white substance under the skin that stores energy and keeps us warm |
| blood vessels | each of the tubes that carry blood around the body |
| regulate | keep sth constant |
| defence | protection |
| bacteria | germs |
| muscles | each of the parts of the body that connect the bones and allow the body to move |
| bone | the hard body parts that make up the skeleton of a creature |
| internal | being in the inside |
| well-nourished | having been given food and other substances necessary to survive, grow and stay healthy |
| mineral | a substance found naturally in food |
| depend on | rely on |
| whole grains | the seeds of plants such as wheat, oats, barley, including their outer part |