7th Science Semester Test (Spring)

What is an atom?

• A large particle that contains compounds

• The smallest unit of an element that retains its properties

• A mixture of elements

• A type of energy

Tags

NGSS.MS-PS1-1

The atomic number of an element tells you the number of:

• Protons

• Neutrons

• Electrons + Neutrons

• Atoms in a molecule

Tags

NGSS.MS-PS1-1

A substance made of two or more elements chemically combined is a:

• Mixture

• Molecule

• Compound

• Solution

Which tool is used to identify elements based on atomic structure?

• Electron chart

• Chemical calculator

• Periodic Table of Elements

• Atomic scale

The center of an atom, containing protons and neutrons, is called the:

• Electron cloud

• Molecule

• Nucleus

• Shell

What is the charge of a neutron?

• Positive

• Negative

• Neutral

• Alternating

What type of energy is stored in food, batteries, and fuels?

• Thermal energy

• Chemical energy

• Kinetic energy

• Electrical energy

Which form of energy is associated with the motion of particles in matter?

• Thermal energy

• Nuclear energy

• Potential energy

• Radiant energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which of the following is an example of potential energy?

• A car moving down a hill

• A stretched rubber band

• Water flowing in a river

• A running athlete

Tags

NGSS.MS-PS3-2

What is the main source of energy for Earth's climate system?

• The Moon

• The Sun

• Fossil fuels

• Earth's core

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6