Exploring the Layers of the Earth

This video tutorial guides seventh-grade students through the process of drawing a model of Earth's layers. It begins with an introduction to the necessary materials, including a pencil, ruler, and circle drawing tool. The teacher explains how to measure and mark the inner core, outer core, and mantle on a page, using precise measurements. Students are shown how to use the circle drawing tool to create rings representing each layer. The video concludes with a discussion on the challenges of drawing the Earth's crust due to its thinness and provides a solution by labeling it instead.

What page of the workbook should you use for drawing the Earth layers model?

• Page 11

• Page 9

• Page 7

• Page 5

Which side of the ruler should you use for measuring?

• Inches side

• Both sides

• Neither side

• Centimeter side

How deep is the inner core in the model?

• 4.2 cm

• 7.9 cm

• 6.5 cm

• 9.7 cm

What is the rounded depth of the outer core?

• 7.8 cm

• 7.9 cm

• 8.1 cm

• 8.0 cm

What is the depth of the mantle in the model?

• 7.2 cm

• 5.2 cm

• 4.2 cm

• 6.2 cm

Tags

NGSS.MS-ESS2-1

What should you do before using the circle drawing tool on your model?

• Use a compass

• Practice on scrap paper

• Draw freehand circles

• Measure with a protractor

How do you create a larger circle using the circle drawing tool?

• Use a different tool

• Use a larger pencil

• Move the center point

• Choose a different hole

What is the main challenge in drawing the crust?

• It is too thin

• It is too thick

• It is too deep

• It is too wide

How thin is the crust in the model?

• Less than 0.1 cm

• 0.1 cm

• 0.2 cm

• 0.5 cm

What should you do to represent the crust in your drawing?

• Draw it freehand

• Use a magnifying glass

• Label the black outline as the crust

• Skip drawing it