Watersheds
Why are wetlands important?
Filter pollution, prevent coastal flooding, provide wildlife habitat.
What does the periodic table organize?
Elements
Which type of heat transfer happens through direct contact?
Conduction.
What tool measures temperature?
Thermometer.
What causes day and night on Earth?
The Earth's rotation.
Name one thing that can pollute a watershed.
Trash, oil, chemicals, or fertilizer.
What is an element?
A pure substance made of one type of atom.
How does the Sun warm up the Earth?
Radiation.
What is weather?
The condition of the atmosphere at a certain time and place.
What causes the seasons?
Earth's tilt and revolution around the Sun (either one of these is fine).
What is a watershed?
An area of land where water drains into the same large body of water.
What makes a chemical equation balanced?
Ex: H2 + O2 --> H2O
Having the same number of atoms (for each element) on both sides of the equation.
Which type of heat transfer can happen in empty space?
Radiation.
What is humidity?
The amount of water vapor in the air.
Why does the moon appear to change shape?
We see different amounts of the lit half of the Moon.
What is runoff?
Water and chemicals that flows over land into streams and rivers.
Which two subatomic particles are found in the nucleus of an atom?
Why does hot air rise?
It is less dense than cool air?
What tool measures air pressure?
Barometer.
What force keeps planets orbiting the Sun?
Gravity.
What is the main source of energy for Earth's water cycle?
The Sun
How can you find the number of protons in an element?
By looking at the element's atomic number.
Give one example of an insulator.
Wood, plastic, or rubber.
Which front often causes strong storms?
What phase is the Moon in when it cannot be seen?
New moon