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The material world
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The material world


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  • Añadir fotos.
  • Poner fotos! Roca y bosque
  • Poner fotos!!!!
  • Transcript

    • 1. The Material World 2˚ ESO BIL Science Presentation by Liannette Bellido October 2010
    • 2. Matter • Matter is anything that occupies space and can be measured. Examples: water, rocks, animals, and plants.
    • 3. TRUE OR FALSE? Everything around us is made of matter. TRUE
    • 4. Properties of matter • Matter has three properties: •DIMENSION •INERTIA •GRAVITATION
    • 5. Properties of matter • Matter has dimensions, that means that two pieces of matter cannot occupy the same space. Example: Two persons cannot sit in the same chair.
    • 6. • Intertia is the resistance of mass to a change in its state of motion. • Inertia is the way in which we measure mass. If a body has double the mass of another, it has double the inertia too. For example: The Inertia of a car is BIGGER than that of a shopping cart because the car has more mass. Properties of matter
    • 7. Wich one is easier to move? A shopping cart A car The Inertia of a shopping cart is smaller than that of a car.
    • 8. • Gravitation is the attraction between two objects. • Is the force responsible of the fall of objects, the movements of planets, and the existance of tides. Properties of matter
    • 9. • Gravitation is another way in which we measure mass. For example: the mass of Jupiter is 310 times BIGGER than the mass of Earth.That means that Jupiter has more gravitation than Earth.
    • 10. • Mass is related to the amount of matter. • Can be measured according to the inertia and gravity of the matter. • The Mass of an object remains the same always at any place. • Weight is the force which a given mass feels due to gravitation. Mass and Weight are NOT the same! All About Mass
    • 11. If you go to the Moon, what changes? Your weight or your mass? The mass always stays the same. Your weight changes!
    • 12. • Density is the relationship between the mass and volume of a body. • Density= Mass/Volume All About Density A body can be BIG but have less mass. A body can be small but have more mass.
    • 13. Bodies and systems of matter • The objects that surround us and have definite limits are called bodies of matter. Example: A rock. • Things with limits that are not precise are called systems of matter Example: A forest.
    • 14. Wich object has definite limits? Wich object has limits that are not precise? A tennis ball has definite limits. That means that it is a body of matter. A beach has limits that are not precise. That means that it is a system of matter.
    • 15. Observing the material word • There are two scales in wich the material world is observe. – Macroscopic observation: Can be percieved by our senses without the help of instruments. – Microscopic observation: Cannot be percived by our senses without the help of instruments.
    • 16. Wich one is Macroscopic? Wich one is Microscopic? Macroscopic Microscopic A plant A cell
    • 17. Matter has present originates Dimensions Inertia Gravitation depends on Mass characterized by Volume are related by Density