True or False:
A homogeneous mixture is an example of a pure substance because it is uniform.
What is false?
100
True or False:
When water changes to steam, thermal energy has been absorbed by the water.
What is true?
100
____________ model and _____________model were the two ancient Greek theories of matter.
What is the continuous and particle?
100
___________________are low-viscosity liquids used to _________ friction.
Lubricants, reduce
200
This part of the atom makes up most of the mass.
What is the nucleus?
200
Matter is NOT ____________.
What is everything in the universe.
200
This is how an atom becomes an ion: ______________________________________________.
An atom becomes an ion when it gains or loses electrons to create a charge imbalance in a previously neutral atom. An atom can not gain or lose protons to become an ion.
200
In the _____________state the attractive forces between particles are too weak to overcome the high speed of the particles.
What is gaseous?
300
A piece of jewelry made of platinum alloyed with gold is this type of mixture.
What is a homogeneous mixture?
300
The part of an atom makes up most of its volume.
What is an electron cloud?
300
One of the first things that Adam did was to name and group the animals in the garden.
What is an example we are given in Scripture of the need for classifying and organizing creation in light of the Creation Mandate?
300
Describe the path of a gas particle in a container: _________________________________
What is The particle will move very quickly in straight lines until it collides with something, which is often. Its path will appear to be random.
400
True or False:
Any physical property of a substance can be used to identify it from other substances.
What is false?
400
This is not a physical property.
What is flammability?
400
This is how to describe a compound. _____________________________________________
Compounds are made up of two or more kinds of atoms that always chemically combine in the same ratio for that particular compound.
500
This is NOT a mixture.
What is pure water?
500
This does NOT indicate an increase in the speed of particle motion.
What is deposition to a solid?
500
Oil and Vinegar salad dressing is an example of a ____________________ mixture.