Brownian motion

How do liquids behave in terms of their shape and level?

• flow and find their own level
• move randomly and quickly in any direction
• have a definite shape
• spread out filling any space available

What are the three states of matter?

• solid liquid and gas
• solid liquid and plasma
• liquid gas and plasma
• solid gas and plasma

How do particles in solids behave?

• particles are in a fixed framework, held close together and vibrate
• particles spread out filling any space available
• particles are far apart and move quickly
• particles are free to move around

Tags

NGSS.MS-PS3-4

What clue about the behavior of gas particles comes from looking at smoke under a microscope?

• particles move randomly and quickly in any direction
• particles are free to move around but vibrate in place
• particles are held close together in a fixed structure
• particles are in contact but still able to move around

What substance was used to study particle behavior in liquids in the 1820s?

• pollen
• oil
• ice
• carbon powder

What causes the movement of pollen grains or carbon particles suspended in a liquid?

• collisions with invisible air particles
• gravity
• strong magnetic fields
• electrical charges

What happens to the shape of a block of ice as it melts?

• the water spreads out and fills up the container
• it becomes more solid
• it turns into a gas
• it retains its shape

Tags

NGSS.MS-PS1-4

How do particles in liquids differ from particles in solids?

• particles are still in contact but free to move around
• particles are in a fixed framework
• particles are far apart and move quickly
• particles are held close together and vibrate

Tags

NGSS.MS-PS3-4

What gives us clues about how particles behave in a gas?

• looking at how smoke appears under a microscope
• measuring the temperature of gases
• observing the color of gases
• studying the density of gases

What was the substance used to demonstrate particle movement in a liquid like oil?

• carbon powder
• water
• pollen
• ice

Tags

NGSS.MS-PS3-4