Elements and Compounds
Physical and Chemical Changes
Vocabulary
Newton's First Law of Motion
Solar System(motion, proportion,gravity
100
What is an element?
A substance that cannot be broken down
100
A metal railing rusting in damp weather is an example of a
Chemical Change
100
The act of an object changing position is
Motion
100
What two measurements are needed to calculate speed?
Distance and Time
100
True or False
All planets orbit the sun in the same direction
True
200
What is a compound?
A substance that is made up of two or more elements.
200
Carrots are cut into small pieces and mixed into a salad is an example of a
Physical Change
200
The speed of an object in a particular direction
Velocity
200
If you travel 10 miles in 5 minutes, what is your speed?
10 miles / 5 minutes
2 miles per minute
200
In what order are the planets?
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
300
The chemical formula has how many elements? CH4+O2----->CO2+H2O
There are 3 elements: Carbon, Hydrogen, and Oxygen.
300
How are physical and chemical changes different?
In a physical change there is not a new substance created. In a chemical change, there is a new substance created.
300
The birthplace of stars
Nebula
300
True or False
Unbalanced forces cause a change in motion
True
300
Name the 4 inner planets
Mercury, Venus, Earth, Mars
400
An element on a periodic table consists of what?
Atomic number, Atomic mass, chemical symbol, and element name.
400
What process does not involve a chemical change?
Digestion
Boiling
Decomposition
Combustion
Boiling
400
A force of attraction between objects that is due to their masses and that decreases as the distance between the object increases
Gravity
400
Two forces can only be balanced when
- The forces act on the same object.
- The forces are equal in magnitude.
- The forces act in opposite directions.
400
Name the four outer planets
Jupiter, Saturn, Uranus, Neptune
500
The periodic table of elements is grouped into how many categories? What are the categories?
Metals, Non-metals, and Metalloids
500
Water evaporating from salt water is a
Physical Change
500
The amount of a particular substance in a given quantity of a solution
Concentration
500
10-10 and 5-5
500
What day is your Science ACP?
Tuesday, December 17th