Midterm review

Souring milk is an example of a

• physical change

• chemical change

Tags

NGSS.MS-PS1-2

Which physical property of matter describes the relationship between mass and volume?

• weight

• reactivity

• density

Which of the following is true about matter?

• It is a solid that takes up space
• It has weight and takes up space
• It has mass and is usually a liquid
• It has mass and takes up space

Which is an example of a physical property of matter?

• Rust
• Water freezing to ice
• Flammability
• These are all chemical properties

Elements are

• identified by very specific physical and chemical properties
• substances that cannot be broken down to any other substance by physical or chemical means
• represented by one or two letter symbols  organized in the Periodic Table
• all the above

Tags

NGSS.HS-PS1-1

What is an atom?

• the basic particle from which all elements are made
• a substance made of two or more elements
• a mixture made of two or more substances that are together in the same place but are not chemically bonded
• a single kind of matter that is pure and has a specific set of properties

Tags

NGSS.MS-PS1-1

Which is NOT an example of a physical  property of matter?

• hardness
• ability to rust
• having a high melting point
• conducting electricity

The Law of Conservation of Matter states that

• matter is created constantly
• matter is destroyed in the exact same amount as matter is created
• matter is neither created or destroyed
• matter is both created and destroyed at a constant rate

Tags

NGSS.HS-PS1-7

How many sig figs in the number 5.1 x 10⁵ ?

• 1
• 2
• 5
• Exponents are my sworn enemies.

How many sig figs in the number 100.010 ?

• 1
• 3
• 5
• 6