Staying Healthy
New tech
Simple Machines 1
Density & Buoyancy
Random
100
Name 2 things we can do to protect ourselves from getting sick.
Any answers:
Wash hands, drink water, eat healthy, exercise, wear mask etc.
100
Self driving cars use ________ to see around them.
Sensors
100
What simple machine is used to open a bottle?
Screw
100
What is more dense?
C. Green
100
What simple machine does a car use to move?
Wheel & Axle
200
These are small particles that can infect animals and plants and make them sick. What are they?
Viruses
200
BONUS!
Add 20 points!
200
I want to lift an elephant up a cliff.
What is the best simple machine to use?
A pulley
200
What is buoyancy or buoyant force do?
It makes things float!
200
What box has the largest volume?
Box C - it the largest!
300
BOMB!
Minus -10 points :(
300
Which boat pushes more water out of the way? Why?
Boat B.
One of these answers is ok: It is _____
wider, more air, more flat, more square/rectangle
300
The load in the picture is __________
the box
300
Does salt make water more or less dense?
More dense
300
What color has a longer wavelength? Purple or red?
Red
400
Antibiotics are used to kill _____________.
Bacteria
400
One good thing and one bad thing about self-driving cars.
1.__________
2.__________
400
You use _________ to push down on a lever.
Effort
400
Is the hot water (red) more or less dense than the cold water (blue)?
The hot water (red) is less dense.
400
What is it called when light bends when going into a different material?
Hint: It starts with an R______________
Refraction
500
What do vaccines do?
It teaches your body how to fight certain viruses/bacteria
500
This picture was taken by an infrared rescue drone.
What does infrared let us see?
Heat
500
The top inclined plane uses less __________ than the bottom. 
less EFFORT
500
The blue arrows show the ________ force.
The orange arrows the the ________ force.
Blue: Buoyant force
Orange: Gravity force
500
Is the mystery liquid more or less dense than water?
Less dense.
The boxes are sinking more in the mystery liquid.