PURE SUBSTANCES AND MIXTURES

Hello dear children!!!

How are you today? I hope you are alright. Today is Tuesday the 24th of March and all of you are doing it great.

I am really happy with you for many things, so let's continue staying at home, we will come back stronger.

Today it's time for Natural Science. We already know matter and the states of matter and now we are going to learn to classify matter. 

I have been looking for videos that can help you to understand but there are not many for your age. I found only two that you can understand. 

The next one you may find it more difficult but at least it's not too long. The problem is that the girl speaks really quickly.

Now I'd like you to read page 84 and do exercise 3 at page 85, but please DO NOT READ PAGE 85 YET. We will learn that lesson later. Next, you can read the ideas you have in your book and that I wrote for you.

In short, we can classify matter into two big groups:

Ø PURE SUBSTANCES that only have one component. Examples: water, metals like gold, silver, aluminium, salt, sugar, wood…

Ø MIXTURES that are formed when we put two or more substances together.

Examples: chocolate milk, lemonade, a cake, bread, soup, salad…

There are two types of mixtures:

Ø Heterogeneous mixtures: those mixtures where you can see the substances with our own eyes. For example a salad, the sand from the beach, pizza…

Homogeneous mixtures: those mixtures where you can’t see the substances separately because the mixture looks the same. For example banana ice-cream, bread, soup…

I will write to you later. Bye, bye!!!