BioGeoChem Cycles
Name the 4 biogeochem cycles
carbon, nitrogen, water, and phosphorus
What are the three main subatomic particles that make up an atom?
Protons, neutrons, and electrons
A substance that contains only one type of atom is called a(n) _______.
Element
What type of molecule is water — polar or nonpolar?
polar
What does “C” in CER stand for?
Claim
In the water cycle, what process turns water from a liquid to a gas?
Evaportation
What part of the atom determines which element it is?
The number of protons
A mixture differs from a compound because the substances in a mixture...
Can be physically separated and keep their own properties.
Does water have a high or low specific heat?
High
What kind of car does Ms. Sampson drive?
Plants take in carbon dioxide during photosynthesis and release what gas?
Oxygen
What charge do electrons have?
Negative
What is the smallest unit of a compound that still has its properties?
Molecule
Why does ice float on water?
Ice is less dense because water molecules spread out when frozen.
What element has the symbol “Na”?
Sodium
How does human activity, like burning fossil fuels, affect the carbon cycle?
It increases carbon dioxide in the atmosphere, contributing to climate change.
Where are neutrons and protons located in an atom?
In the nucleus
What type of bond holds atoms together in a water molecule?
Covalent bond
What property of water allows insects to walk on its surface?
Surface Tension
What's Ms. Sampson's favorite color?
Blue
Name one way the nitrogen cycle can be disrupted by human activity.
Using too much fertilizer causes runoff, leading to algal blooms and water pollution.
If oxygen has 8 protons, how many electrons does it have in a neutral atom?
8
Salt water is an example of what type of mixture?
A solution
Explain how water’s polarity helps it act as a “universal solvent.”
Water’s positive and negative ends attract charged particles, allowing it to dissolve many substances.
The rows on the periodic table are called what?
Periods