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General Science Quiz

General Science Quiz

Assessment

Interactive Video

Science

6th - 8th Grade

Practice Problem

Hard

Created by

Nancy Jackson

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the middle layer of the Earth called?

Crust

Core

Mantle

Lithosphere

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which organelle is known as the powerhouse of the cell?

Nucleus

Chloroplast

Ribosome

Mitochondria

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the chemical formula H2SO4 represent?

Acetic Acid

Hydrochloric Acid

Sulfuric Acid

Nitric Acid

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which gas is primarily responsible for ozone layer depletion?

Methane

Nitrous Oxide

Chlorofluorocarbons

Carbon Dioxide

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who is credited with developing the periodic table of elements?

Dmitri Mendeleev

Marie Curie

Isaac Newton

Antoine Lavoisier

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the smallest unit of an element that retains its chemical properties?

Compound

Cell

Molecule

Atom

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main function of red blood cells?

Clotting blood

Producing antibodies

Transporting oxygen

Regulating temperature

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