Properties of Matter and Ecosystems

The video tutorial discusses Earth's water distribution, highlighting that 97% of it is salty. It explores freshwater sources like the Great Lakes and smaller bodies of water. The video also examines the adaptations of species in Lake B to their cold environment. Finally, it covers the properties of matter, including how temperature affects its state and the interaction with sunlight.

What percentage of Earth's water is salty?

• 100%

• 70%

• 50%

• 97%

Where is most of Earth's fresh water found?

• In large lakes

• In small lakes, rivers, and streams

• In the oceans

• In the atmosphere

What is a notable feature of Lake B?

• It is the largest lake in the world

• It has nearly 2,000 plant and animal species

• It is located in a desert

• It is a saltwater lake

Which animal is famously associated with Lake B?

• The Great White Shark

• The Polar Bear

• The Nerf

• The African Elephant

How do species in Lake B adapt to their environment?

• By living in trees

• By hibernating during winter

• By developing super strong flippers

• By migrating to warmer areas

What determines the state of matter?

• Its weight

• Its color

• Its size

• Its temperature

What happens to matter when it reaches a certain temperature?

• It changes color

• It disappears

• It becomes heavier

• It changes state

What is a property of matter related to light?

• It can emit light

• It can absorb light

• It can reflect light

• All of the above

How does sand interact with sunlight?

• It blocks sunlight

• It absorbs sunlight

• It reflects all sunlight

• It emits sunlight

What is the effect of energy absorption on matter?

• It becomes transparent

• It heats up

• It changes color

• It cools down