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Hello boys and girls, welcome to a new natural science unit, unit number 5, matter and heat.

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Goal number 1, discover the properties of matter.

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Goal number 2, we are going to learn about the three different states of matter, solids, liquids and gases.

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goal number three we're going to discover changes of matter goal number four we're going to learn

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about pure substances and mixtures and finally goal number five we're going to find out or

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discover about heat. First question. What is matter? Can you see it? It's matter. Can you

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touch it? It's matter. Can you smell it? It's matter. Can you taste it? It's matter. Everything

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in our planet is made up of matter. Everything in the universe is made up of

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matter. Living things are made up of matter, for example, animals, plants, the

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five kingdoms. Non-living things are made up of matter, for example, water, rocks, the

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ground or materials. What is matter then? Matter is everything that exists. All

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materials are made up of matter. Natural materials are made of matter and

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artificial or man-made materials are made up of matter. Let's become a

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scientist an experiment to understand matter. As you know in class we've made a

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few experiments to understand the properties of matter. Properties of

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matter. Matter possesses or has two fundamental properties. Volume. Volume is

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the space that a thing occupies. And mass, mass is the quantity of matter that thing has.

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Volume can be measured in cubic meters, cubic decimeters, cubic centimeters. And mass can be

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measured in kilograms, grams, milligrams. In class we made two experiments to

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understand the properties of matter. First we had a rubber ball and a metal

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ball and we asked two questions. Which side has more volume the rubber ball or

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the metal ball and more mass? We had to make a hypothesis. The ball has more

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volume and another hypothesis the ball has more mass and the results

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were that the rubber ball has more volume and the metal ball has more mass

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in this case. In experiment two we compared alcohol and water. We have to be

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in mind that they both have the same level of liquid. In that case we have to

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make a hypothesis alcohol or water has volume and hypothesis 2 alcohol or water

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has mass. The result number one was that water and alcohol have equal volume or

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or space in this case as the level of liquid is the same result number two was that water has

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more mass than alcohol and we will also answer that alcohol has less mass than water