Science Unit 5

Front 1

Acid

Back 1

An aqueous solution with a pH less than seven that reacts to metals violently - sour taste

Front 2

Base

Back 2

Something that contains hydroxide it has a pH more than 7. It is often bitter and slippery - corrosive.

Front 3

pH

Back 3

A linear scale from 0 - 14. 7 is neutral.

Front 4

Litmus

Back 4

The paper that tuns the base blue and the acid red.

Front 5

pH Paper

Back 5

A piece of paper that takes on a different colour - measured against a chart

Front 6

Universal Indicator

Back 6

Squirt it into the water, look for the colour change (whole range)

Front 7

Neutralization

Back 7

The addition of acid and base solutions to produce a pH near 7 and water

Front 8

Biological Monitoring

Back 8

The use of organisms that live in the water to help determine water/habitant quality

Front 9

Concentration Forms

Back 9

PPm, PPb, PPt. (Parts per million, parts per billion and parts per trillion)

Front 10

Chemical Monitoring

Back 10

Monitoring that amount of dissolved oxygen in water, pH levels, phosphorous

Front 11

Stability of Pollutant

Back 11

How long a pollutant can stay as it is.

Front 12

Toxicity

Back 12

How poisonous a substance is.

Front 13

Nutrients

Back 13

Elements and compounds that organisms need

Front 14

Macronutrients

Back 14

Elements that living things require in large amounts

Front 15

Micronutrients

Back 15

Elements that living things require in small amounts

Front 16

Organic Molecules

Back 16

Complex molecules that contain carbon

Front 17

Lipids

Back 17

Naturally occuring molecules (a type of organic molecule)

Front 18

Protein

Back 18

Nitrogen organic molecule compounds. Biurets test for protein.

Front 19

Carbohydrates

Back 19

Organic molecules made up of only carbon, hydrogen and oxygen (glucose)

Front 20

Nucleic Acids

Back 20

DNA (Adenine + Thymine Guanine + Cytosine + Phosphate + Sugar)

Front 21

Photolysis

Back 21

The breakdown of compounds through sunlight. (e.g. leaving a plastic bag outside in the sun for 3 months, then it becomes powder)

Front 22

Chemical Remediation

Back 22

The use of chemicals to break down the materials or stop them from expanding

Front 23

Biodegration

Back 23

The breaking down of materials (happens when microorganisms break down things. e.g. worms)

Front 24

Phytoremediation

Back 24

The use of plants to reduce the amount of harmful chemicals in the ground or in the ground water. Plants soak up the chemicals in the ground and absorb radioactivity in the soil.

Front 25

Soil Permeability

Back 25

The ability for water to pass through the soil through pores.

Front 26

High Permeability

Back 26

Easy to flow through

Front 27

Low Permeability

Back 27

Difficult to flow through

Front 28

Ground Water

Back 28

Comes from precipitation, water that flows slowly through the ground (1m/year to 1m/day). Because of this slow flow, contaminants cannot be dispersed easily

Front 29

Utrophication

Back 29

Putting too many nutrients into water

Front 30

Leachate

Back 30

Liquid that drains or 'leaches' from a landfill - a contaminant

Front 31

Pollutant

Back 31

A substance of condition that contaminants the air, water or soil

Front 32

Pollution

Back 32

The state of the environment while it is being contaminated by harmful substances

Front 33

Turbidity

Back 33

The thick or opaque condition of the water: amount of sediment

Front 34

Nitrogen

Back 34

A non-metallic element, essential for all life, a fertilizer that can cause an algae bloom

Front 35

Heavy Metals

Back 35

Any metallic element that has a high density and is toxic/poisonous