What is Density?
What does the word density mean?
How tightly packed the matter (stuff) inside something is. How close the particles are together.
Does a wooden block sink or float in water?
Float
Why does a boat made of metal float even though metal sinks?
The shape traps air and spreads out the weight.
What does the 'S' in STEAM stand for?
Science
True or False:
Heavy things always sink.
False! It depends on their density, not just their weight.
Does a rock sink or float?
Sink!
What is pusing up on a floating object?
Water
What does the 'E' in STEAM stand for?
Engineering
If something is less dense than water, what will it do?
It will float!
Does an orange with its peel float or sink?
Float!
The peel traps the air.
When something floats, is it MORE dense or LESS dense than water?
Less dense.
What is one way we use technology in STEAM?
Computers, robots, coding, etc
What tool do scientists use to measure how heavy something is?
A scale.
What happens if you peel an orange and put it into water?
It sinks!
What happens when two objects have the same density as water?
They stay in the middle - they don't sink or float.
What is ont things artists do in STEAM projects?
Design, decorate, color, make creative choices.
What two things do you compare to figure out if something will sink or float?
The object’s density and the density of the liquid.
Name one object that floats and one that sinks.
You tell me!
Why does a big log float but a small rock sinks?
The log's overall density is lower.
The log has more air and less dense material.
The log is less dense than the rock. The rock is more dense than the log.
How do scientists and engineers use density in real life?
boat designs, oil spills, building materials.