Third Grade Natural Science: Matter 2

Remember that MATTER is anything that takes up space. 

All of these objects...milk, coke, bell, balloons, pears, books, a hot air balloon and a pen...are examples of matter!

What is volume and mass again?

Mass is the amount of matter that is formed. We can measure mass in grams (g) and kilograms (kg). Let’s do this exercises below to practice. (Put in Class Dojo).

We measure small things like rings in grams.

We measure big things like people in kilograms.

1. On a separate piece of paper please write which objects you would measure in grams and which objects you would measure in kilograms. (Class Dojo)

2. How much do you weigh? Please write your weight (mass) in kilograms in Class Dojo.

Volume is the amount of space matter occupies. We can measure volume in Liters (L) or milliliters (ml).

1.  Write how many milliliters are in each graduated cylinder. (Class Dojo)

 

What are Pure Substances and Mixtures again?

A pure substance is made of only one substance. For example, sugar is a pure substance because sugar is made of one thing, sugar. 

A mixture is a combination of 2 or more substances. For example, sea water is made of water, salt and another minerals. 

1. Please write a list of 5 pure substances you can find outside of your house. Write a list of 5 mixtures you can find inside of your house. ( Class Dojo).