First Semester Science (7th)

The forces of attraction between the particles of a matter sample are strong and draw particles together, keeping them in their place. This is an example  _____.

• of the liquid state of matter

• of the solid state of matter

• of the gas state of matter

• viscosity

  The sum of all the potential energy and kinetic energy of an object equals its _____.  

• kinetic energy

• thermal energy

• force

• potential energy

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

  In which state of matter there are very weak attractions between particles?  

• liquid

• solid

• gas

• clay

Tags

NGSS.MS-PS3-4

  A change in the state of matter occurs if enough _____ is added or removed from an object.  

• potential energy

• kinetic energy

• thermal energy

• force

Tags

NGSS.MS-PS1-4

In general, nonmetals are ____ since they are composed of individual atoms or small molecules.

• good conductors of electricity

• malleable and ductile

• good conductors of heat

• gases at room temperature

  In general, metals are ____ since they are composed of individual atoms or small molecules.  

• poor conductors of heat

• brittle

• poor conductors of electricity

• good conductors of heat

Tags

NGSS.MS-PS3-3

• Carbon

• Hydrogen

• nitrogen

• oxugen

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NGSS.MS-PS1-1

Breaking a chemical bond _____.

• absorbs energy from the surroundings

• creates energy that did not previously exist

• releases energy into the surroundings

• uses up energy that then no longer exists

Tags

NGSS.HS-PS1-4

An exothermic reaction_________.

• absorbs thermal energy

• needs energy to be added constantly in order to continue

• needs more energy to break the chemical bonds than is released when products form

• releases thermal energy

Tags

NGSS.MS-PS3-3

The following are examples of physical properties except ____.

• ability to dissolve in water

• ability to react with oxygen

• Density

• shape