Name: ELEMENTS COMPOUNDS MIXTURES WORKSHEET
I. Fill in the Blanks:
1. A
can be either an element or compound.
2. A liquid in which the particles settle out is a
mixture called a
3. A substance which contains only one type of atom is an
4. Define matter
mixture also
5. When two or more substances are mixed evenly this is a
called
6. What are two differences between a compound and a mixture?
7. A
mixture is one in which particles or layers can be seen.
8. What are two things that element and compounds have in common?
9. A
separated by physical means, and a
can be separated by chemical means, a
can be
can't be separated by physical or chemical means
10. A
particles do not settle.
is a heterogeneous mixture that has particles farge enough to scatter light, but the

a mercury barometer is a device that uses the physical properties of mercury in a tube to measure barometric pressure. mercury barometers are used for : -

1. measurement of atmospheric pressure  

2. determining the altitude of a place

3. weather forecasting

4. calibration and checking of aneroid barometers

5. application in fluid mechanics

6. measurement of pressure in aircrafts

7. surface weather analysis

8. preparation of barographs

9. usage in physical sciences like physics, astronomy & chemistry

10. preparation of aircraft altimeters

characteristics of mercury barometer : -

1.used to define and measure atmospheric pressure.

2.on the average at sea level the column of mercury rises to a height of about 760 mm.

3.this quantity is equal to 1 atmosphere.

4.it is also known as standard atmospheric pressure.

5.a barometer in which the weight of a column of mercury in a glass tube with a sealed top is balanced against that of the atmosphere pressing on an exposed cistern of mercury at the base of the mercury column, the height of the column varying with atmospheric pressure.

cytokinesis is the splitting of a cell membrane to form 2 identical daughter cells. it's similar to mitosis as both cells have identical copies of dna and cytokinesis is a step in the mitotic cycle.

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.