Physics
What invisible force pulls objects to Earth's center?
Gravity
Name 2 simple machines.
Incline Plane/Lever/Pulley/Screw/Wedge/Wheel and Axle
What are the 3 states of matter?
Solid, liquid, and gas
What do humans breathe in and what do we breathe out?
Oxygen and Carbon Dioxide/We breathe in oxygen and breathe out Carbon Dioxide
What is mass?
How much matter/stuff is in an object
What is a fulcrum?
Support/The support in a lever
What is a substance called when it repels water and does not easily absorb it?
Hydrophobic
Why are blood tests important?
To know if we are healthy/Blood tests tell you if you're healthy or not
What is velocity?
How fast something goes in 1 direction
What do simple machines do?
Make work easier/Change the amount and direction of force
Which state of matter is the least dense?
Gas
Which organ is known as the command center of your brain and why?
The brain, because it tells the rest of our body what to do/The brain, because it controls our body
Why does cold air sink while hot air rises?
Difference in density/Cold air is denser than hot air
What does support do in a building?
Helps a structure stay upright and hold weight
Explain what a hydrophilic substance does.
How does blood travel from your heart to around your body?
Arteries/Using the arteries