# Layered Liquids!

Contributor: Kaitlyn Zimmerman. Lesson ID: 12685

Do you have a favorite drink that is a mixture of flavors, or made of milk or water mixed with powder or syrup? What if you mix soap, milk, honey, oil ... don't drink it! Make some artwork with it!

categories

## Chemistry, Scientific Method

subject
Science
learning style
Visual
personality style
Golden Retriever
Primary (K-2)
Lesson Type
Quick Query

## Lesson Plan - Get It!

Audio:

Whenever someone uses the word “layers,” you may automatically think of a layered cake, the layers of the earth, or maybe even the layers of a piece of lasagna.

Do you ever think of liquids when you think of layers? Layered liquids?

So far in this Weights and Volume series, you have learned a lot about weight, volume, and their effects on other substances.

In the previous Related Lesson, found in the right-hand sidebar, you covered two main points: how weight (or density) affects certain liquids' abilities to mix with one another and how you can measure weight in grams.

• Do you remember what density is?

Density is how tightly-compacted something is. A rock is heavier than a same-size ping poing ball because the ball is not as compact as the rock; it is mostly loose air molecules.

In the previous lesson, you also learned how to measure weight in grams by using a graduated cylinder.

In this lesson, you will be measuring more items in grams. However, if you do not have a graduated cylinder, you can measure milliliters by converting teaspoons into milliliters.

• Do you remember the conversion rate of teaspoons to milliliters from the previous lesson?

It is provided below for you to use:

• 1 teaspoon = approx. 5 milliliters (mLs)
• ½ teaspoon = approx. 2.5 milliliters (mLs)
• ¼ teaspoon = approx. 1.25 milliliters (mLs)
• 18 teaspoon = approx. .75 milliliters (mLs)

Also, if you do not have a test tube, use a small jar or container.

There are 5 (five) items used in this lesson's experiment in order to see which is the most dense (will sink to the bottom) and which is the least dense (will float on top). These items include oil, syrup, colored water, a piece of peppercorn, and a piece of plastic.

• Which do you think will be the most dense, and why?
• Which do you think will be the least dense, and why?

Drop in on Dr. Z to find out!