LT 2.5 Practice Quiz

LT 2.5 Practice Quiz

9th Grade

•

30 Qs

quiz-placeholder

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LT 2.5 Practice Quiz

LT 2.5 Practice Quiz

Assessment

Quiz

•

Science

•

9th Grade

•

Practice Problem

•

Medium

•
NGSS
MS-ESS1-4, MS-ESS2-1, MS-ESS2-2

+6

Standards-aligned

Created by

Andy Wilson

Used 1+ times

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30 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which era is known as the "Age of Reptiles" in the geological time scale?

Paleozoic

Mesozoic

Cenozoic

Precambrian

Answer explanation

The Mesozoic era, often referred to as the "Age of Reptiles," is characterized by the dominance of dinosaurs and other reptiles. It spans from about 252 to 66 million years ago, distinguishing it from the Paleozoic, Cenozoic, and Precambrian eras.

Tags

NGSS.MS-ESS1-4

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main process by which sedimentary rocks are formed?

Melting

Compaction and cementation

Evaporation

Sublimation

Answer explanation

Sedimentary rocks are primarily formed through the processes of compaction and cementation, where sediments are compressed and bound together over time, unlike melting, evaporation, or sublimation.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of fossil is formed when minerals replace all or part of an organism?

Cast fossil

Petrified fossil

Trace fossil

Mold fossil

Answer explanation

A petrified fossil forms when minerals replace all or part of an organism, turning it into stone. This process preserves the original structure, unlike cast or mold fossils, which do not involve mineral replacement.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first stage in the rock cycle?

Weathering and erosion

Melting

Cooling and solidification

Deposition

Answer explanation

The first stage in the rock cycle is weathering and erosion, where rocks are broken down into smaller particles and transported. This process is essential for forming sediment, which leads to the creation of sedimentary rocks.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which gas is most commonly released during volcanic eruptions?

Oxygen

Carbon dioxide

Nitrogen

Hydrogen

Answer explanation

During volcanic eruptions, carbon dioxide is the most commonly released gas. It is produced by the melting of rocks and the release of gases from magma, making it a significant component of volcanic emissions.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which period is the oldest in the geological time scale?

Jurassic

Cambrian

Cretaceous

Quaternary

Answer explanation

The Cambrian period is the oldest in the geological time scale, occurring around 541 million years ago. In contrast, the Jurassic, Cretaceous, and Quaternary periods are all more recent.

Tags

NGSS.MS-ESS1-4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which process is responsible for the formation of igneous rocks?

Cooling and solidification of magma

Weathering of rocks

Compaction of sediments

Metamorphism

Answer explanation

Igneous rocks form through the cooling and solidification of magma. This process occurs when magma from beneath the Earth's surface cools, either slowly underground or rapidly at the surface, resulting in solid rock.

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