Model of Matter- The Particulate Nature of Matter

Which of the following substances did Robert Brown observed upon forming the concept of Brownian motion?

• Talc powder suspended in water
• Pollen grains suspended in water
• Talc powder suspended in air
• Pollen grains suspended in air

He concluded that collision between water particles (unseen) and the pollen grains (seen) causes the movement of pollen grains in water.

• Robert Brown
• Albert Einstein

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

Particles of all matter are in constant random motion.

• True
• False

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

These particles are held together be very strong forces of attraction

• Solid
• Liquid
• Gas
• Plasma

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NGSS.MS-PS3-4

It has no definite shape or volume

• Solid
• Liquid
• Gas
• Plasma

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NGSS.MS-PS1-4

Their particles are packed closely together without a fixed regular pattern

• Solid
• Liquid
• Gas
• Plasma

Tags

NGSS.MS-PS1-4

It is the densest among all state of matter

• Solid
• Liquid
• Gas
• Plasma

It can be compressed

• Solid
• Liquid
• Gas

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NGSS.MS-PS1-4

Its particles are held together by weak forces of attraction and are able to move freely over long distances

• Solid
• Liquid
• Gas

Tags

NGSS.MS-PS1-4

When matter is heated, the 
particles _______ energy

• Gain
• Lose

Tags

NGSS.MS-PS1-4