Soil is a natural resource composed of minerals and organic matter.

A natural resource composed of minerals and organic matter

Gravel is a loose aggregation of rock fragments.

A loose aggregation of rock fragments

The properties of rocks can be described by their mineral composition, texture, and structure.

Mineral composition, texture, and structure

Mineral composition and texture

Select the correct statement about rocks.

Rocks are naturally occurring solids composed of minerals.

The size and shape of a resting rock is different from a wishing rock in that ______.

the resting rock is larger and has a more irregular shape than the wishing rock

the resting rock is smaller and has a smoother shape than the wishing rock

both rocks are identical in size and shape

the resting rock is heavier, but their shapes are similar

The main difference between pebbles and the other rocks discussed so far is that pebbles are smooth and rounded.

Pebbles are smooth and rounded.

Pebbles have the same texture as the other rocks.

Pebbles are larger than the other rocks.

The rocks became part of the Earth through a process of accretion during planetary formation.

They accreted during the formation of the Earth.

They were delivered by meteorites.

They formed separately and joined later.

They are not part of the Earth.

Scientists use tools to study and describe our rocks because they provide ways to analyze the rock properties.

They provide ways to examine rock structures and properties

They serve as decorative items for rocks

They eliminate the need for direct observation

They are used only for field work

The properties of rocks include hardness, texture, and chemical composition.

Hardness, texture, and chemical composition

Chemical composition and magnetism

Scientists must be very detailed in measuring and describing/recording observations because it ensures accuracy, reproducibility, and allows others to validate the findings. Which of the following best summarizes this importance?

It ensures that experiments can be accurately repeated and verified by others.

It helps to decorate scientific reports.

It allows for random guessing in results.

It makes experiments unnecessarily complicated.

Scientists share their observations/finding with other scientists to enable verification and support further research. Why is this important?

It allows for independent verification through peer review.

It increases public interest in science.

It helps scientists avoid repeating each other's work.

It accelerates the pace of competitive research.

Fill in the blank: Students will share their second rock observations and compare how the size and shape of the rock was different from Rock #1 from Day 3.

Students will share their second rock observations and compare how the size and shape of the rock was different from Rock #1 from Day 3.

Students will share their first rock observations and compare how the texture and color of the rock was different from Rock #1 from Day 3.

Students will share their second rock observations and compare how the weight and density of the rock differed from Rock #1 from Day 3.

Students will compare their second rock observations with rocks from another experiment instead of Rock #1 from Day 3.

Spenser’s rocks are different because of their unique composition, texture, and formation process.

They differ in composition, texture, and formation process

They are the same as other rocks

They are only different in color

A geologist is a scientist who studies the Earth, its materials, and the processes that shape it.

A geologist is a professional who designs computer software.

A geologist is an expert in financial markets.

A geologist is a medical doctor specialized in geology-related diseases.

Spenser discovered igneous, sedimentary, and metamorphic rocks.

Igneous, sedimentary, and metamorphic rocks

Sedimentary, metamorphic, and crystalline rocks

Volcanic, sedimentary, and granite rocks

Igneous, sedimentary, and limestone rocks

Some properties of the rocks include texture, color, and composition.

Texture, color, and composition

Hardness, elasticity, and magnetism

Identify how their shapes and sizes differ.

They differ in both shape and size.

They are the same in shape and size.

2nd Grade Earth Rocks Curriculum Guide

Authored by Angela Sharp

Science

2nd Grade

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74 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the texture of a rock?

Rough

Smooth

Coarse

Polished

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The color of a rock is:

Gray

Brown

Black

Red

OPEN ENDED QUESTION

3 mins • 1 pt

What is the size of a rock?

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The shape of a rock is ______.

Rounded

Irregular

Angular

Oblong

MULTIPLE SELECT QUESTION

30 sec • 1 pt

What is luster in rocks?

shiny

dull

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Sand is a naturally occurring granular material composed of finely divided rock and mineral particles.

Granular material

Liquid substance

Gaseous substance

Metallic alloy

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Boulder is a large rock.

A large rock

A small rock

A mountain

A pebble

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2nd Grade Earth Rocks Curriculum Guide

What is the texture of a rock?

The color of a rock is:

What is the size of a rock?

The shape of a rock is ______.

What is luster in rocks?

Sand is a naturally occurring granular material composed of finely divided rock and mineral particles.

Boulder is a large rock.

What is a pebble.

Soil is a natural resource composed of minerals and organic matter.

A stone is a rock.

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