Definitions Week 1 Flashcards
1
Q
Acceleration
A
The change in speed divided by the amount of time taken for the change
2
Q
Acid
A
A substance which turns blue litmus paper red.
Has a ph less than 7
Have a sharp taste and feel
3
Q
Acid rain
A
Rainwater with a ph less than 5.5
4
Q
Activity series
A
A list of metals placed in order of how reactive they are
5
Q
Adaption
A
A structure or habitat that helps an organism survive in its habitat
6
Q
Aerobic respiration
A
Oxygen is needed to release energy from food
7
Q
Alkali
A
A substance which reacts with acid to form salt and water. Alkalis are bases that dissolve in water
8
Q
Alkali metals
A
The element sod group 1 of the periodic Table eg sodium
9
Q
Alkaline earth metals
A
The elements of group 2 of the periodic table. Eg calcium
10
Q
Alloy
A
A mixture of metals
