Matter
These are the three states of matter.
What are solids, liquids and gases?
What can make the particles in matter move faster?
Adding heat
Homogeneous and Heterogeneous
Emulsions, suspensions and colloids are what kind of mixture?
heterogeneous mixtures
This is anything that has a mass and takes up space.
What is matter?
Which state of matter has a definite shape and volume?
What is solid?
Particles are always moving because ___
of kinetic energy
In the experiment where vinegar is mixed with baking soda, bubbles form and a gas is released. Which gas is produced?
carbon dioxide
Which type of mixture do you need to shake so that it can mix?
suspension
Out of the following, which best defines a particle: anything that has a mass and takes up space, OR a very small piece of matter.
What is a very small piece of matter?
This type of mater has a definite volume but does not have a definite shape.
What is LIQUID?
When vinegar reacts with baking soda to produce bubbles, what kind of change is that? .
Chemical change
A mixture can be separated by ______________
physical methods
Paint is what kind of mixture?
Colloid
What is a solution?
A solution is a homogeneous mixture, which means the parts are evenly mixed and can’t be easily separated.
What happens to the particles in a substance when it changes from a liquid to a gas?
What is they move faster and spread apart?
When a liquid reaches a certain temperature, its particles have enough energy to break free and turn into gas. This exact temperature is different for each substance and is called what?
Boiling Point
Give an example of a solute and solvent.
e.g. solute salt. solvent water = salt water (solution)
To get flour, baking powder, chocolate chips, sugar and vanilla extract to mix, what would you add?
milk / butter / egg yolk
What mixture does not separate?
homogeneous
Three things that are not matter.
What is light, gravity and heat?
What is the difference between a physical and a chemical change?
Physical change does not make a new substance, Chemical change makes a new substance
You mix two clear liquids together and tiny solid particles form that make the mixture look cloudy. The solid eventually sinks to the bottom. What type of mixture has been formed?
suspension
Explain how milk can be both homogeneous and heterogeneous.
In non-homogenized milk or fresh milk, the fat droplets (cream) can separate and rise to the top over time. In store bought milk, it's homogeneous.
What kind of mixture is toothpaste?
colloid