Topic 5 Lesson 1 Earth's Surface Systems

Guess the principle! It's a fascinating concept that suggests the ancient geologic processes we see in action today were also at work in the distant past. It's like saying, 'What happened then, happens now!' Can you name it?

• Principle of Uniformitarianism

• Principle of Gradualism

• Principle of Catastrophism

• Principle of Variation

Tags

NGSS.MS-LS4-1

What's the powerful natural process that magically wears down or carries away rocks using the forces of wind, water, ice, and gravity?

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

What's the incredible process that magically breaks down rocks and other substances?

• Erosion

• Decomposition

• Dissolution

• Weathering

Tags

NGSS.MS-ESS2-4

Organize these options into the right categories

Groups:

(a) Agents of mechanical weathering

,

(b) Agents of chemical weathering

• carbon dioxide

• water

• living organisms

• abrasion

• plant growth

• acid rain

• animal actions

• freezing and thawing

• release of pressure

• oxygen

Tags

NGSS.MS-ESS2-2

What's the process called when rocks are physically broken down or weakened? Think of it as rocks getting a tough workout!

• Mechanical weathering

• Chemical weathering

• Biological weathering

• Weathering erosion

Imagine you're a rock star, not the musical kind, but an actual rock! You're hanging out in a hot and wet climate, jamming with other chemicals, and creating new minerals as you break down. This process is called (a)   . It's a wild, transformative adventure!

• chemical weathering

• mechanical weathering

• erosion

• weathering

Guess what? There's a loose, weathered material right beneath our feet where all sorts of plants love to grow. Can you name it?

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-3

What is the dark-colored substance that forms as plant and animal remains decay, playing a crucial role in enriching the soil?

• fertilizer

• humus

• compost

• soil

Tags

NGSS.MS-LS2-3

What is Mrs. Curl's favorite color?

Which state did Mrs. Curl live in?

• South Dakota

• California

• Hawaii

• New York