What's the Matter?
What is matter?
Anything that has mass and takes up space.
All matter is made of ____ that are always ___.
All matter is made of PARTICLES that are always MOVING.
What is a mixture?
Two or more substances that are combined
When you add sugar to tea, the sugar is the ____.
When you add sugar to tea, the sugar is the SOLUTE.
To remove tea leaves (solid) from water (liquid), we can use ____.
To remove tea leaves from water, we can use FILTRATION.
Name the three states of matter.
Solid, liquid, gas
Describe the particles in a solid (e.g., ice cube).
Close together, moving very slowly
Give an example of a homogeneous mixture.
(anything where the particles are evenly spread out and look the same)
When you add sugar to tea, the tea is the ____.
When you add sugar to tea, the tea is the SOLVENT.
To remove a salt (solid) from water (liquid) we can use ___.
To remove a salt from water we can use EVAPORATION.
Name the change of state: a SOLID turns into a LIQUID
melting
What makes particles move faster?
Heat
Give an example of a heterogeneous mixture.
(any mixture where the particles are not evenly spread out and you can see the different components)
Describe why a hot liquid (e.g., tea) can dissolve sugar more easily than a cold liquid.
Heat makes the particles move faster which creates more space between them. This makes it easier for the sugar particles to slip in between.
To separate sewing needles (solids) from buttons and threads (solids), we can use ____.
To separate sewing needles from buttons and threads, we can use MAGNETISM.
Name the change of state: A GAS turns into a SOLID
deposition
Give an example of a pure substance.
Elements such as gold, copper, diamond, oxygen
Mixtures are not chemically bonded, which means _____
Mixtures are not chemically bonded, which means THEY CAN BE PHYSICALLY SEPARATED.
Why is water called "the universal solvent"?
Water can dissolve more substances than any other liquid. Wow!
Medical labs use centrifugation to separate _____ components.
Medical labs use centrifugation to separate BLOOD components (e.g., separate plasma from red blood cells).
Name the change of state: a GAS turns into a LIQUID
condensation
What is a pure substance?
A substance that has only one kind of particle, all particles are the same
Name two methods of physically separating mixtures.
Filtering, boiling
Why does cocoa powder dissolve faster than a marshmallow?
Cocoa powder has smaller particles, they are easier to dissolve
_____ is used to purify drinking water or to separate crude oil into gas, diesel, or kerosene.
DISTILLATION is used to purify drinking water or to separate crude oil into gas, diesel, or kerosene.