What Does it Mean?!?
The force that pulls things towards the center of Earth
Gravity
What are 3 most common types of matter?
Solid, Liquid, and Gas
Magnets have a negative and positive pole. What happens if you try to touch the positive ends of two magnets together?
They repel each other
This tool measures temperature.
Thermometer
Oscar ripped up a piece of paper. What kind of change in matter is this?
A physical change
The process of a liquid turning into a gas
Evaporation
This type of change forms a new substance
A chemical change
Double or nothing: give an example of a chemical change
True or false: If an object is at rest it will stay at rest until a force acts on it.
True
Double or nothing: Name a synonym for "at rest"
What does a wind vane do?
It measures the direction of the wind
A climate map
Define a force
A push or pull on an object
Double or nothing: give an example of a force
What state of matter has a definite shape and takes up a definite amount of space.
A solid
Double or nothing: Describe what the molecules of a liquid and gas look like.
How does mass affect the amount of force needed to move an object?
The greater the mass the greater the force needed
Double or nothing: What is the difference between mass and weight.
This tool measures wind speed
An anemometer
Deja walked to the salon 10 minutes away. The salon is 1610 meters away. What was her average speed for the trip?
161 m/minute
An opposing force that stops or decreases the motion of an object
Friction
This prevents heat or sound from passing through an object
An insulator
Double or nothing: what is the opposite of a insulator and give a example.
Mr. Johnson and Mr. Velazquez's classes are playing tug of war. After several minutes, the students notice that the rope has not moved. What is one possible cause of this?
They have created a balanced force.
What does a barometer do?
Measures air pressure
Double or nothing: what does the weather look like when we have high vs low pressure?
Michael and Semaj are moving a dresser. They are arguing about which direction to move it. Michael is pushing the dresser with a force of 5 newtons towards Semaj. Semaj is pushing the dresser towards Michael with a force of 10 newtons. What happens to the dresser?
Semaj is using more force, so the dresser will move towards Michael
Define Transpiration
Loss of a plants water to its environment through evaporation
Double or nothing: What is this process a part of?
What happens to molecules when they are heated?
They expand
Name Newton's 3 Laws of motion
Law of Inertia, Law of Acceleration, Law of Action-Reaction
What effect does the Gulf Stream have on the Eastern US?
It carries warm water up the coast of the US leaving southeastern coasts warmer in winter and cooler in summer
Durham has been in the 70s for a couple of days. The temperature then drops down to the 50s. What type of front did they experience?
A cold front
Double or nothing: does cold air rise or fall?