7th grade semester vocab review

What is Matter?

• Matter is anything that has mass and takes up space.
• Matter is the absence of space.
• Matter is only found in solid form.
• Matter is a type of energy.

Tags

NGSS.MS-PS1-5

What is a substance?

• A substance is a temporary state of matter.
• A substance is a collection of random particles.
• A substance is a type of energy.
• A substance is a single kind of matter with a definite composition.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is a physical property?

• A physical property is a characteristic that can be observed without changing it.

• A physical property can only be observed through chemical reactions.
• A physical property is a characteristic that cannot be measured or observed.
• A physical property is a characteristic that changes the chemical identity of a substance.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-2

What is a chemical property?

• A chemical property can be observed without changing the substance.

• A chemical property refers to the physical state of a substance.
• A chemical property is a measure of how much a substance weighs.
• A chemical property is a characteristic that can only be observed during a change.

What is an atom?

• An atom is a type of molecule.
• An atom is a large particle made of protons and neutrons.
• An atom is a form of energy that can be harnessed.
• An atom is the basic unit of matter.

Tags

NGSS.MS-PS1-1

What are elements?

• Elements are mixtures of different substances.
• Elements can be broken down into simpler substances.
• Elements are always found in liquid form.
• Elements are substances that are made of only one type of atom.

What is a molecule?

• A molecule is a single atom.
• A molecule is a type of chemical reaction.
• A molecule is a mixture of different substances.
• A molecule is two or more atoms bonded together.

Tags

NGSS.MS-PS1-1

What is a compound?

• A compound is a type of chemical reaction that occurs between elements.
• A compound is a mixture of different substances that retain their individual properties.
• A compound is a substance made up of two or more elements chemically combined.

• A compound is a single element that cannot be broken down.

Tags

NGSS.MS-PS1-1

What is a mixture?

• A mixture is a chemical reaction between two substances.
• A mixture is a single substance with uniform properties.
• A mixture is a solution that cannot be separated into its components.
• A mixture is a combination of two or more substances that are not bonded.

What is a homogenous mixture?

• A homogeneous mixture is a mixture that is hard to see the parts.

• A homogeneous mixture is a mixture that has varying composition throughout.
• A homogeneous mixture is a mixture that can be easily separated.
• A homogeneous mixture is a mixture with distinct layers.