How Much Salt is in the Ocean?

What is the main topic of the lesson?

• The life of sea creatures

• The history of oceans

• How much salt is in the ocean

• The water cycle

What happens to salt when it is mixed with water?

• It floats on top

• It sinks to the bottom

• It dissolves

• It evaporates

What is a 'Tiny Ocean' in the lesson?

• A type of fish

• A model of the ocean in a bag

• A small ocean on Earth

• A new ocean discovered

What tool is suggested to measure the weight of the salt and water mixture?

• A stopwatch

• A scale

• A thermometer

• A ruler

Tags

CCSS.3.MD.A.2

What is the purpose of using black paper in the experiment?

• To make the bag look pretty

• To help observe the Tiny Ocean

• To keep the water warm

• To absorb the salt

What is the process called when water changes to a gas?

• Precipitation

• Evaporation

• Freezing

• Condensation

What evidence shows that salt is still in the water even if we can't see it?

• The water tastes salty

• The water becomes thicker

• The water changes color

• The water evaporates faster

What is the role of the 'Wave Maker' in the experiment?

• To add salt to the water

• To make waves in the bag

• To clean up the experiment

• To measure the salt

What is a 'solution' as described in the lesson?

• A mixture where you cannot tell the different parts

• A solid substance

• A type of ocean

• A mixture where you can see all parts

What happens to the salt when the water in the Tiny Ocean evaporates?

• The salt changes color

• The salt disappears

• The salt remains as a solid

• The salt turns into gas