Your Results | Global Average | |
---|---|---|
Questions | 5 | 5 |
Correct | 0 | 2.86 |
Score | 0% | 57% |
Molecules and atoms that are outputs from a chemical reaction are known as which of the following?
reactants |
|
side effects |
|
products |
|
results |
During a chemical reaction molecules and atoms (reactants) are rearranged into new combinations that result in new kinds of atoms or molecules (products).
Which of the following describes the Earth's outer core?
solid |
|
liquid |
|
makes up most of the Earth's volume |
|
primarily solid |
The Earth's core is divided into the liquid outer core (1,430 miles or 2,300 km radius) and the solid inner core (745 miles or 1,200 km radius).
What part of the nervous system controls simple reflexes?
autonomic |
|
medulla |
|
cerebrum |
|
spinal cord |
The spinal cord connects the brain to the body's network of nerves. It carries impulses between all organs and the brain and controls simple reflexes.
Which of the following temperatures is least like the others?
-273°C |
|
absolute zero |
|
0K |
|
32°F |
Absolute zero is the coldest possible temperature in the universe. In the Kelvin scale, absolute zero is 0K and in the Celsius scale it is -273°C.
Which of the following is not a base unit in the metric system?
liter |
|
meter |
|
degree Fahrenheit |
|
gram |
The Fahrenheit scale is used for measuring temperature in the British system. The metric system uses the Celsius scale.