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ashley's unit 1

science

QuestionAnswer
What is the definition of matter? Anything that takes up space and has mass
What is the definition of chemistry? The study of matter and it's changes
What is the definiton of the particle theory of metter? an explanation of what matter is made of and how it behaves; the particle theory states that all matter is made up of tiny particles that are always moving, that attract each other, and that have space between them.
What is point one of the particle theory? All matter is made up of tiny particles
What is point two of the particle theory? Particles have empty spaces between them
What is point three of the particle theory? Even though you cannot see them, particles are moving randomly all the time
What is point four of the particle theory? Particles move faster and spread farther apart when they are heated
What is point five of the particle theory? Particles attrcat each other, so they tend to stay together rather than fly apart
What is the definition of a solid? A state of matter with a definite shape and a definite volume
What is the definition of a liquid? A state of matter with definite volume, but no definite shape; a liquid takes the shape of it's container
What is the definition of a gas? A state of matter that does not have a definite shape; a gas takes the shape and volume of it's container
What is the difference between a mixture and a pure substance? A mixture is matter that contains two or more particles while a pure substance is matter that contains only one kind or particle
What type of water is a pure substance? Distilled water. It has had all non-water particles removed
Why is apple juice and tap water mixtures and not pure substances? They are mixtures because apple juice has flavour. water, vitamin,and sugar particles. Tap water contains water and many other particles.
What remains the same when matter changes state? The particles themselves remain the same and the number of particles remain the same
What changes when matter changes state? The arrangement of the particles and the speed of the particles change
What is another word for a mechanical mixture? Heterogeneous
What is another word for a solution? Homogeneous
What is a mechanical mixture/heterogeneous? A mixture with different parts that you can see
What is a solution/homogeneous? A mixture that looks like a pure substance, you an't see the different parts it is made up of two or more pure substances
List 2 examples of a mechancical mixture/heterogeneous Omlette and granola bar
List 2 examples of a solution/homogeneous Apple juice and stainless steel
Created by: music4life
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