Fluids - 7.1 Grade 8

Question 1

What is a fluid?

*What 2 types of matter can a fluid be?

Answer 1

A fluid is any substance that flows.

It can be either a gas or a liquid.

Question 2

List examples of liquid fluids.

*give 5 examples

Answer 2

Sample Answers: honey, blood, lava, engine oil, window cleaner.

Question 3

List examples of gaseous fluids.

*Give 3 examples

Answer 3

Sample Answers: oxygen, carbon dioxide, helium.

Question 4

What is a slurry?

*Give an example

Answer 4

A mixture of solids and water. (ex. Paper was once a slurry of wood pulp and water)

Question 5

What is slurry technology?

Answer 5

The transport of solids in water.

Question 6

What is hydroseeding and what is it used for?

include what it is a mixture of and who uses it

Answer 6

Hydroseeding is a type of slurry which is a mixture of seeds, fertilizer and sawdust. Farmers use hydroseeding to plant seeds in hard to reach areas.

Question 7

Fluids have the ability to hold or carry different materials. Give an example.

Answer 7

For example, fluids like toothpaste, hold abrasive particles to help clean the surface of your teeth.

Question 8

Why were many solid objects prepared as fluids.

• give 2 points
• give an example

Answer 8

Many solid objects were originally prepared as fluids because fluids are easy to move and take the shape of their containers. (ex. A slurry of cement is easy to transport and shape)

Question 9

How is steel processed into a liquid and why?

fluids in processing materials

Answer 9

Materials such as steel are processed into a liquid by heating it to a high temperature so that the mixture can be melted together. The liquid steel can now be shaped into different shapes and forms and allowed to cool back into a solid.

Question 10

Give examples of uses for fluids.

*At least 3

Answer 10

Examples of uses of fluids:

• oil is added to the engine of a car to decrease friction, and to reduce noise, heat, and wear.
• paint is applied to iron to create a barrier that prevents rust from forming.
• they can be used to cool machines, like in a refrigerator
• fluid circulating in a radiator can warm a room
• Gaseous fluids can be forced into a smaller volume, like air being pumped into a bicycle tire.

Question 11

Some mineral ores are converted to liquids in a method called _____ so they can be transported more easily.
*fill in the blank

Answer 11

Froth Flotation