This process turns liquid water into water vapor using energy from the Sun.
What is evaporation?
23.5 degrees
What is the earths tilt?
A list of all the elements on earth.
What is the periodic table?
A substance that is made up of one type of atom
What is an element?
This organ helps digest fats by producing bile.
What is the liver?
Burning fossil fuels releases large amounts of carbon dioxide through this process.
What is combustion?
This is the second phase of the moon.
What is the waxing cresent?
This element has the atomic number 1 and is the lightest element on the periodic table.
What is hydrogen?
A particle that has a negative charge that is found in the shells.
What are electrons?
These blood vessels carry oxygenated blood away from the heart.
What are arteries?
This process allows water to soak into the ground and become groundwater.
What is infiltration?
This Moon phase occurs when half of the Moon’s surface is illuminated and it is increasing in brightness.
What is the first quarter moon?
This element is a noble gas commonly used to fill balloons because it is lighter than air and nonflammable.
What is helium?
A particle found in the nucleus that has a positive charge
Most nutrient absorption occurs in this part of the digestive system.
What is the small intestine?
Oceans act as major carbon sinks by absorbing this gas from the atmosphere.
What is carbon dioxide?
This rare event happens when the Moon completely blocks the Sun as seen from Earth.
What is a total solar eclipse?
When two elements are chemically combined.
What is a compound?
A basic building block of all materials
What are atoms?
These tiny air sacs in the lungs are the site of gas exchange.
What are alveoli?
Plants release water vapor into the atmosphere through this process.
What is transpiration?
This shadow causes the darkest part of a lunar eclipse when the Moon passes fully into it.
What is the umbra?
This type of bond forms when electrons are transferred from one atom to another
What is an ionic bond?
This number shows how many electrons and neutrons there are in an atom.
This structure increases the surface area of the small intestine to maximize nutrient absorption.
what are villi?