What has happened to carbon dioxide levels in the atmosphere since the 1850's?
What has happened to carbon dioxide levels in the atmosphere since the 1850's?
Using the knowledge you have gained throughout the unit, and your notes, complete the test to the best of your ability.
Using the knowledge you have gained throughout the unit, and your notes, complete the test to the best of your ability.
What does the term cohesion mean?
The ability of water to stick to other substances is called
Click on show your work and complete the following four steps:
1. Write the chemical formula for water
2. Draw a water molecule
3. Write the charges for all atoms (hint: there are three atoms)
4. Draw arrows showing the direction the charge is being pulled from and where it is being pulled to
Scientists refer to water as the universal solvent, why is water good at dissolving things?
No complete sentence needed.
Which of the following are properties of water? Select all that apply.
Click show your work
1. Draw water atoms to show how water and salt interact.
Use 4 water molecules for Na and 6 water molecules for Cl. Be sure that the atoms are oriented correctly.
2. Add charges to all molecules in the diagram
How is a MAJORITY of oxygen produced in the ocean?
What is one way that marine organisms get oxygen from the water?
What is pH a measure of?
On the pH scale what numbers are acids?
Pure water has a pH of 7.
On the pH scale what numbers are bases?
Which is the upward force on an swimmer that balances the downward force of gravity and keeps the swimmer from sinking?
Steel is almost eight times more dense than water. A steel ship can float in water instead of sink because of its
A submarine can travel both on the surface of the water and underwater because it can change its
Freshwater has a higher density than saltwater.
What has happened to carbon dioxide levels in the atmosphere since the 1850's?
What is ocean acidification?
Which gas is primarily responsible for ocean acidification?
What is the main source of carbon dioxide contributing to ocean acidification?
Name one impact of ocean acidification on marine life.
Which of the following are potential consequences of ocean acidification? Select ALL that apply.
Which organism is particularly vulnerable to ocean acidification?
Explain how ocean acidification impacts the ability of marine organisms to build shells and skeletons.
What pH value is considered acidic for the ocean?