Vocabulary
The substance doing the dissolving
What is the Solvent?
A mixture is 2 substances that can be easily _____
separated
True or false, dissolving and evaporation are the same.
False
What are the three states of matter?
What are solid, liquid, and gas?
What are 2 properties we can use to separate mixtures?
Examples: size, color, magnetism
What is the smallest unit of matter?
What is an atom?
What is He on the periodic table?
What is helium?
Is the melting point of a nonmetal high or low?
What is low?
True or False?
Scientists can see (using their eyes) atoms under a microscope.
What is false?
When you can see and physically separate the different parts of a mixture.
What is Heterogenous?
Example: trail mix contains:
peanuts, raisins and M&M's
What is a mixture?
TRUE OR FALSE:
Solutions are mixtures in which the substances are evenly mixed throughout
TRUE
What are the two types of mixtures that begin with the letter h?
What is homogeneous and heterogeneous?
What are two methods we can use to separate mixtures?
Examples: Magnets, evaporation, strainer, filter paper, tweezers, fingers, etc.
What three parts make up the structure of an atom?
What is a proton, neutron, and electron?
What is C on the periodic table?
What is carbon?
What state of matter can you find a metalloid?
What is a solid?
What are negatively charged particles in an atom?
What are electrons?
The one being dissolved
What is the Solute?
Gravel and Sand is a
Mixture
The two parts of a solution.
What are the solute and solvent?
NaCl is the chemical compound for what?
What is salt or sodium chloride?
If you wanted to separate salt from water, what would you do?
Use evaporation
This occurs when you combine elements together chemically. An example is sugar.
What is a compound?
What is Na on the periodic table?
What is sodium?
What is brittle and can be easily shattered?
What is a metalloid?
What is the name in the middle of the atom structure that has the protons and neutrons?
What is the nucleus?
When you can not see or physically separate the different parts of a Solution.
What is Homogeneous?
True or false?
All solutions are mixtures, but not all mixtures are solutions
What is True?
When Kool-aid powder is mixed with water, what is the solute?
Kool-aid powder
What are 3 common ways to change matter?
1. physical change 2. state change 3. chemical change
How would you separate iron filings from sand?
Use a magnet
This is what you make when you take individual atoms and physically connect them together.
What is a molecule?
What is Fe on the periodic table?
What is iron?
Malleable is a property of what?
What is a metal?
Protons plus neutrons equals what?
What is atomic mass?
What is created by pure substances and can be separated?
What is a mixture?
The Properties are maintained when two different components are put together.
What are mixtures?
True or False
Pure substances cannot be broken down into simpler substances by physical methods.
What is true?
In a ____________ system the total mass of the matter is the same before an after a physical, state, or chemical change.
What is a closed system?
What would be the best method to use to separate a mixture of sand and gravel?
A sieve
What is a pure substance consisting only of atoms that all have the same number of protons?
What is an element?
What is the periodic element for gold?
What is Au?
Which is a poor conductor?
What is a nonmetal?
What 4 elements make up 97% of humans?
What is Carbon, Hydrogen, Oxygen, and Nitrogen?