X hits on this document

59 views

0 shares

0 downloads

0 comments

5 / 24

Word bank

Pupils will not know some of the words used in the text. Meanings are given below, followed by an exercise in matching words and meanings.

Teachers may choose to provide some or all of the meanings to help pupils read and understand the story. An approach that leads to better learning is to ask pupils to complete as much of Activity 1 as possible during their first encounter with the text.

By tackling this exercise and those that follow – which are known collectively as directed activities related to texts (DARTs) – pupils can engage with a piece of writing, and learn a great deal from it, even when many of its ideas and words are unfamiliar to them.

Word

Meaning

1

amniotic fluid

watery liquid that surrounds an embryo. It is contained in a thin, tough sac called the amnion.

2

backup

kept in reserve in case it’s needed

3

cell

the building block of all living things except viruses

4

conception

fertilisation of egg by sperm

5

defining

something that makes it what it is

6

degenerative

of a disease: in which the body or mind works less and less well, as time goes on

7

develop

grow bigger and better formed

8

disorder

illness, often caused by something going wrong, rather than infection

9

DNA

giant molecule that contains the genes; short for deoxyribonucleic acid

10

ectoderm

the outermost of the three layers of an embryo, which grows into the skin and nervous system

11

embryo

early stage in development of an animal or plant following fertilisation of an egg cell. In humans the word is used for the fertilised egg during its first seven weeks of existence; from the eighth week on it is called a foetus.

12

embryonic

of the embryo

13

endoderm

the innermost of the three layers of an embryo, which becomes the digestive system

14

engineered

designed and made; artificial

15

expelled

forced out

real   science

Document info
Document views59
Page views59
Page last viewedMon Dec 05 18:52:59 UTC 2016
Pages24
Paragraphs557
Words5465

Comments