Rocks

Which rock has these physical properties: smooth, glassy, black?

Obsidian, amethyst, granite, or hematite?

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Which rock has these physical properties: rough, speckled?

Obsidian, amethyst, granite, or hematite?

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Which rock has these physical properties: smooth, silvery?

Obsidian, amethyst, granite, or hematite?

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Which rock has these physical properties: smooth, glassy, purple?

Obsidian, amethyst, granite, or hematite?

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How big or how small something is

• property

• Texture

• size

• rock

Tags

NGSS.2-PS1-1

A characteristic of an object

• property

• Texture

• size

• rock

Tags

NGSS.2-PS1-1

NGSS.2-PS1-2

A piece of Earth’s surface

• property

• Texture

• size

• rock

Tags

NGSS.MS-ESS2-1

What a surface looks and feels like

• property

• Texture

• size

• rock

Tags

NGSS.5-PS1-3

How wide is the rock?

• 3 cm

• 6 cm

• 5 cm

• 4 cm

How wide is the smaller rock?

• 1 cm

• 3 cm

• 5 cm

• 8 cm