Sink or float? Displacement quiz. https://youtu.be/seDsizwc

What is the video about?

• Forces

• Mass

• Gravity

• Why things sink or float

Tags

CCSS.RI.2.1

CCSS.RI.2.6

CCSS.SL.2.3

What is the first thing that floats?

• Smilenita (a smiling yellow toy)

• Seanceritops (A plastic dino)

• A marble

• An angry green fish called Jamie

What is the first thing that sinks?

• A dino

• A marble

• An iron rod

• the teacher

Tags

CCSS.RI.2.1

What is Jackazard's (the Chararizard) hypothesis about why things sink or float?

• He thinks less dense things float

• He thinks heavier things sink

• He thinks lighter things sink

• He thinks prettier things sink and thinks Jess would sink the faster of all

Tags

CCSS.RI.2.1

CCSS.SL.2.3

Why is Charizard's hypothesis incorrect?

• Because heavy things don't sink

• Because if something is heavy has nothing to do with it sinking

• Because physics is a balance and weight is only half of the balance

• Because gravity doesn't work in water

Tags

CCSS.SL.2.3

What example of a heavy thing that floats is given?

• A ball

• A marble

• A cruise ship

• An airplane

Tags

CCSS.RI.2.1

CCSS.RL.2.1

What is displacement?

• Not placement

• How hard gravity pulls

• How much water something pushes away when it sinks

• How much pizza Charlene can eat

What would displace more water, an elephant or a ping-pong ball?

• A ping pong ball

• an elephant

• they would both be equal

• neither would displace any water at all

What force pulls things down toward the center of the Earth?

• friction

• gravity

• motion

• velocity

Why do ping-pong balls float, but elephants sink?

• Ping-pong balls displace more water

• Ping-pong balls have less mass than the water they displace

• elephants displace more water

• elephants have more mass