Lesson 1.4

Multiple Choice

This rock was another type of rock that was heated and compressed over time. What type of rock is this?

• Sedimentary
• Igneous
• Metamorphic

Multiple Choice

This rock formed when bits of other rocks became pressed into a solid. What type of rock is it?

• Sedimentary Rock
• Metamorphic Rock
• Igneous Rock

Open Ended

Describe a situation where knowing about rock transformations could be useful in everyday life.

Multiple Choice

Why is it important to understand how rocks are formed and transformed in nature?

• It helps us predict natural disasters like earthquakes and volcanoes.

• It allows us to identify valuable minerals and resources.

• It helps us understand Earth's history and changes over time.

• All of the above

Open Ended

How long do you think it took for each layer of rock in the Quebrada de Humahuaca formation to form?

Open Ended

Why do you think it is difficult to observe rocks forming in nature?

Multiple Select

Which of the following are reasons why it is difficult to observe rock formation in nature?

• Rock formation takes a very long time

• Rock layers are often underground

• Weathering can change rock appearance

• Rocks form only at night

Multiple Choice

Why do scientists use models to study rock formation?

• Because rocks form too quickly to observe directly

• Because rocks form too slowly to observe directly

• Because models are more fun than real rocks

• Because models are the only way to study rocks

Open Ended

How does using hard candy as a model help us understand how sediment forms rock?

Open Ended

What do you think the crushed candy represents in the model?

Open Ended

How does the crushed candy compare to the sediment?

Multiple Choice

Which materials are used to model how sediment is compacted to form sedimentary rock?

• Crushed candy, plastic cups, pen

• Sand, water, spoon

• Clay, glass, ruler

• Salt, paper, pencil

Open Ended

How are the pieces of hard candy like pieces of rock (sediment)? How are they different?

Multiple Choice

What is the purpose of pressing down on the stacked cups in the candy rock formation model?

• To mix the candy pieces

• To compact the candy and model sedimentary rock formation

• To break the cups

• To separate the candy by color

Multiple Choice

After lifting the inner cup, what changes do you observe in the candy pieces?

• They are more compacted

• They have melted

• They have changed color

• They have disappeared

Open Ended

How are we modeling the formation of new rock from sediment?

Multiple Choice

Which rock type is formed when sediment is pressed and glued together?

• Igneous rock

• Metamorphic rock

• Sedimentary rock

• Volcanic rock

Open Ended

What do you expect to observe when we return to your model in Chapter 2?

Open Ended

Describe the changes that occur to sediment grains as they transform from loose sediment to cemented sediment over thousands of years.

Multiple Choice

Which of the following processes are involved in transforming loose sediment into sedimentary rock?

• Melting and cooling

• Compaction and cementation

• Evaporation and condensation

• Erosion and weathering

Multiple Choice

Which process involves sediment being buried and pressed together?

• Compaction

• Cementation

• Erosion

• Melting

Multiple Choice

Which process involves sediment being glued together?

• Cementation

• Compaction

• Weathering

• Cooling

Open Ended

Explain how the model shown demonstrates the process of compaction in rock formation.

Open Ended

What could we do to add the process of cementation to our model?

Open Ended

How could we use hard candy to model magma forming rock?

Look at video

Video

https://learning.amplify.com/m/60f8420c266c57f/2500k-MSSCI_RT_NA_CS_20111.mp4?assetId=9C6C55AA-E193-4054-87A1B10FEA154016

Open Ended

What is one thing you learned today about how rocks are formed?