Oceanography CFA

The pie graph shows the percentages of water on Earth. A student claims that a large percentage of water on Earth is immediately available to drink.  Which of the following questions can a student ask to determine if this is correct?

• Is 100% of the water on Earth immediately available to drink?

• Is 97% of the water on Earth immediately available to drink?

• Is 2% of the water on Earth immediately available to drink?

• Is 1% of the water on Earth immediately available to drink?

Which question BEST describes the portion of water in each location on the Earth’s surface?

• Can 3% of the Earth’s freshwater only exist as ice caps and glaciers?

• Can 97% of the Earth’s salt water only exists as water vapor and seas?

• Can 3% of the Earth’s freshwater be found in ice caps, ground, lakes, swamps, and rivers?

• Can 97% of the Earth’s salt water be found in lakes, streams, seas, and oceans?

Tags

NGSS.MS-ESS2-4

A group of 6th-grade students are studying where water is located on the Earth’s surface. The graph shows the distribution of water on Earth's surface.  Which questions can students MOST LIKELY ask to determine where water is located on the Earth’s surface?

• Is most of the Earth’s freshwater found in the oceans?

• Is most of the Earth’s freshwater found in groundwater?

• Is most of the Earth’s global water available in the oceans?

• Is most of the Earth’s global water available on the surface?

Tags

NGSS.MS-ESS2-4

A student takes a bottle of cold water from the refrigerator and leaves it on the counter. Ten minutes later, the student noticed there is now water droplets on the outside of the bottle. Which scientific phenomenon explains the water on the outside of the bottle?

• Condensation- the air temperature decreased around the bottle causing water droplets to form.

• Evaporation- the air temperature decreased around the bottle causing water droplets to form.

• Condensation- the air temperature increased around the bottle causing water vapor to form.

• Evaporation- the air temperature increased around the bottle causing water vapor to form.

Tags

NGSS.MS-PS1-4

You grab a bottle of water from the fridge and set it on the counter. When you come back for it 2 hours later, water droplets have formed on the outside of the water bottle. What is this an example of?

• Condensation because the temperature of the air nearest the bottle has increased causing water droplets to form .

• Condensation because the temperature of the air nearest the bottle has decreased causing water droplets to form.

• Evaporation because the temperature of the air nearest the bottle has increased causing water droplets to form.

• Evaporation because the temperature of the air nearest the bottle has decreased causing water droplets to form .

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following BEST predicts the outcome of the experiment and explains why?

• The beginning amount of water in the container would be less than the ending amount of water in the container because the water evaporated decreasing the water level.

• The beginning amount of water in the container would be more than the ending amount of water in the container because the process of condensation increases the water level.

• The beginning and ending amounts of water in the container would be equal because the water that was evaporated increased the water level but then came back as precipitation which decreased the water level again.

• The beginning and ending amounts of water in the container would be equal because the water that was evaporated decreased the water level but then came back as precipitation which increased the water level again.

Tags

NGSS.MS-ESS2-4

Which of the following questions can BEST be answered by the data presented in the pie graph?

• What are the types of seawater?

• Which other elements make up seawater?

• How does seawater differ from freshwater?

• Which two salt elements are the most abundant in seawater?

The salinity levels of ocean water are different throughout the world. What are the two main factors that affect salinity levels?

• the rate of evaporation and pressure

• the rate of condensation and pressure

• the rate of evaporation and the amount of freshwater flowing into the ocean

• the rate of condensation and the amount of freshwater flowing into the ocean

Students complete a lab to show what happens to the density of water in regards to freshwater compared to saltwater. What material affects the density?

• Types of eggs

• Size of beaker

• The amount of salt

• The amount of water

Tags

NGSS.MS-PS3-4

What most likely causes waves?

• Gravitational pull of the moon

• The wind

• Marine life swimming in the ocean

• The Coriolis effect

Tags

NGSS.MS-PS4-1

NGSS.MS-ESS2-6