Nature of Science - Timko

A pot of boiling water on the stove is an example of a closed system.

• true
• false

Tags

NGSS.MS-PS1-4

A scientific hypothesis must be testable.

• true
• false

Tags

NGSS.MS-LS2-4

Scientists read each other's work only after it is published.

• true
• false

If you drop a book from your hand to the floor, some of the ___ energy of the book will be converted to ___ energy.

• potential; kinetic
• kinetic; potential
• electromagnetic; kinetic
• potential; electromagnetic

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-2

When coal is burned completely into carbon dioxide and other gases, the total amount of matter of the gases ___.

• equals half of the volume of the coal
• equals the mass of the coal
• is less than the mass of the coal
• is less than the volume of the coal

Tags

NGSS.MS-PS1-5

An acidic solution has a pH greater than 7.

• true

• false

Organic compounds always contain carbon.

• true
• false

Tags

NGSS.HS-LS1-6

Whenever matter undergoes a physical or chemical change, no atoms are created or destroyed.

• true
• false

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Energy associated with motion is called potential energy.

• true
• false

Tags

NGSS.MS-PS3-1

In an efficient physical change, more energy comes out than goes in.

• true
• false