Unit 3 Lesson 1 What Are Rocks?

There are rocks all over the place. I bet you could go outside and find a few in your school playground! If you look at a rock very closely, you might see it has some _________.

• feet

• crystals

• hair

• buttons

The crystals you see in rocks are called _________.

• shells

• sand

• minerals

• specks

Tags

NGSS.MS-PS1-1

Some rocks are very big. This rock is HUGE! It is called a ________.

• mineral

• sand

• pebble

• boulder

A seashell is not a rock. But sand is made of of tiny pieces of _______.

• rock

• crystals

• seashells

• glass

Rock can be really hard. But nature can also be very strong. When things in nature like wind and rain, break apart rocks, it is called ______________.

• storms

• rain

• wind

• weathering

Tags

NGSS.MS-ESS2-4

True or false? Weathering usually happens slowly over many, many years.

• true

• false

True or false? Rocks always stay the same and never change.

• true

• false

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

True or false? Weathering can be caused by wind, rain, or snow.

• true

• false

Tags

NGSS.MS-ESS2-2

True or false? Many types of rocks are found underground.

• true

• false

Tags

NGSS.MS-ESS1-4

            How can rocks be different? Choose the answer that is most true.

• Rocks can be different sizes.

• Rocks can have different shapes and colors.

• Rocks can have different sizes, shapes, and colors.

Tags

NGSS.5-PS1-3