Unit A: Section 4.0 Flashcards Preview

Grade 8: Science > Unit A: Section 4.0 > Flashcards

Flashcards in Unit A: Section 4.0 Deck (20):
1

What does a surfactant do?

Cleans clothes

2

What does a filler do?

Stops detergent from clumping

3

What does the suspension agent do?

Stops dirt from re-attaching to material

4

What does bleach do?

Removes stains

5

What does the fragrance do?

Adds scent

6

What does the builder do?

Softens water to help surfactant clean

7

What does the corrosion inhibitor do?

Prevents washer from rusting

8

What does the enzyme do?

Removes protein stains

9

What does the optical whitener do?

Adds brightness

10

What does the coloring agent do?

Gives detergent color

11

What causes the bends?

When a diver ascends too quickly and the nitrogen cannot leave their body safely

12

What is the treatment for the bends?

The air put in a pressure chamber and decrease the pressure slowly

13

What are the two types of pumps?

Diaphragm and Archimedes screw

14

What is a pump?

A device that moves fluid through or into something

15

How does a bicycle pump work?

A piston is pushed down and makes the cylinder high pressure

16

What is a pipeline pig?

It cleans pipes while it is pushed through

17

What is a valve?

They regulate or control the amount of flow

18

What is a bathyscaph?

It is an underwater vessel that is made to go to the deepest part of the world

19

How does a submarine work?

If it wants to descend it fills it's ballast with water, if it wants to ascend it fills it's ballast with air

20

How does a detergent work?

It surrounds the dirt and prevents it from re-attaching to the fabric