How Do Spray Cans Work?

How Do Spray Cans Work?

How Do Spray Cans Work?
Reading Level

	edHelper's suggested reading level:	grades 4 to 6
	Flesch-Kincaid grade level:	5.16

Vocabulary

challenging words:

aerosol, dispense, sunscreen, trigger, opening, volume, valve, billion, mainly, dioxide, easily, convenient, foamy, shaving, spraying, works

Print How Do Spray Cans Work?

Print How Do Spray Cans Work? (font options, pick words for additional puzzles, and more)

Quickly Print - PDF format

	Quickly Print: PDF (2 columns per page)
	Quickly Print: PDF (full page)

Quickly Print - HTML format

Quickly Print: HTML

Proofreading Activity

Print a proofreading activity

Feedback on How Do Spray Cans Work?

Leave your feedback on How Do Spray Cans Work? (use this link if you found an error in the story)

How Do Spray Cans Work?
By Cindy Grigg

¹     Have you ever wondered how spray cans work? A spray can has a product inside it you can use. Many different kinds of products today can be found in spray cans. Cooking oil, paint, bug spray, sunscreen, and hair spray are just a few. Fire extinguishers, too, are really just big spray cans. Spray cans dispense products that come out in liquid form like bug spray. They can dispense a vapor like deodorant. The product can even be foamy like shaving cream.

²     Spray cans work by using matter that can quickly change from liquid to gas. Spray cans dispense a liquid under pressure. The pressure comes from a gas that is inside the can. This gas is called the propellant. Inside the can under high pressure, the propellant is mainly a liquid. It evaporates into a gas easily when pressure is reduced.

³     You may know that liquids always have the same volume. They always take up the same amount of space. When a liquid changes into a gas, its volume expands. When the spray button is pushed, the propellant evaporates. This creates high pressure above the liquid product.

Paragraphs 4 to 7:
For the complete story with questions: click here for printable

Copyright © 2009 edHelper