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Matter and its properties
Matter and its properties
Physics and chemistry study matter. They study what matter is made of, how it looks, and its main properties. It is important to understand what matter means so we can know its characteristics and tell it apart from other things.
To tell something apart: to see or understand the difference between two (or more) things.
Propietats de la matèria.mp4
Matter is everything that has mass and OCCupies (takes up) space.
Matter is everything that has mass and OCCupies (takes up) space.
Activity 2
Activity 2
Say which of the following are considered matter:
Say which of the following are considered matter:
JOY
BUILDING
SAND
FIRE
OXYGEN
WATER
SADNESS
ACTIVITY 3
ACTIVITY 3
In which states can we find matter in nature?
In which states can we find matter in nature?
matter's properties
matter's properties
Imagine you are astronauts and you find a rock of unknown origin on the surface of the Moon. How would you describe its properties?
Classification of the Properties of Matter
Classification of the Properties of Matter
ACTIVITY 4
ACTIVITY 4
You have two glasses with different liquids. You are told that one of the liquids is water, but the other one is unknown. Design an experiment to tell them apart and say which property you use.
Then, list three examples of general properties and three examples of specific properties.
MASS AND VOLUME
MASS AND VOLUME
Think
Think
We have a piece of wood, a piece of iron, and a bottle of water.
Can you say which one has more matter?
Can this quantity be measured?
Mass is one of the two main properties that a substance must have to be considered matter. 🤔
Mass does not change with temperature 🌡️, pressure 💨, or place 🗺️.
For example, an astronaut 🧑🚀 with a mass of 80 kilograms has the same mass on the Earth 🌍 and on the Moon 🌕, because the amount of matter is the same.
To measure mass, we use instruments like a scale ⚖️.
Volume 📦 is the other main property that every substance must have to be considered matter.
The volume of an object can be calculated depending on its shape 📐.
If it has a regular shape, like a sphere ⚽ or a prism 🧊, we can calculate its volume mathematically using the correct formulas 🧮.
The volume of an object can be calculated depending on its shape.
If it has a regular shape, for example a sphere or a prism, we can calculate its volume mathematically using the corresponding formulas.
ACTIVITy 5
ACTIVITy 5
Measuring the volume of an irregular object, like a stone
Measuring the volume of an irregular object, like a stone
We need:
We need:
Graduated cylinder
Water
Stone
ACTIVITy 6
ACTIVITy 6
Convert the following units:
Convert the following units:
500 g to kg
250 cm³ to L
1200 dg to hg
1960 m³ to mL
Calculate the volume (in SI units) of a sphere with a radius of 10 cm.
Calculate the volume (in SI units) of a sphere with a radius of 10 cm.
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