Science
It is difficult to see the surface of Venus through a telescope. Which feature of Venus best explains why its surface is difficult to observe from Earth.
It's thick atmosphere makes it difficult to observe
the spinal cord is made of a bundle of _______ that runs from the brain to the hips
nerves
Why is the sun considered the center of the solar system
Everything in the solar system revolves around the sun
Explain what a light year is and why astronomers use this to describe distance in space
A measurement used by scientists to measure extreme distances in space.
saliva in the mouth breaks down starchy foods such as crackers into ______
sugar
What system protects the body and gives it structure?
Skeletal system
Explain why the sun appears so much larger than other stars
It is much closer to Earth than the other stars.
In our solar system what objects are found between Mars and Jupiter
the asteroid belt
What would be the best place to look at stars at night
An area that would be rather dark, perhaps a desert in Arizona, and away from light
What type of energy does Planet Earth receive from the Sun
solar energy
What organs below are an important part of the circulatory system?
heart, blood, blood vessels
Convert 478 decameters to centimeters
478,000
Our solar system consists of eight planets What is a planet
A large object that revolves around a star in its own orbit
Explain how food moves through the digestive system
mouth, esophagus, stomach, large intestine, small intestine
water evaporating into the air is an example of what two spheres interacting with one another
hydropshere and atmosphere
What organs below are an important part of the excretory system?
kidneys and bladder
Name all of the earth spheres
hydrosphere atmosphere biosphere and geosphere
Explain the difference between rotation and revolution
Rotation is the spinning of an object around its axis revolution is the movement of an object around another object
What does food provide that helps the body cells grow and stay healthy
nutrients
Explain the function of each of the Earth's spheres
hydro-
atmo-
bio-
geo-
hydro- all water on, under, or above Earth
atmo- layer of gases that surround Earth
bio - ALL living things
geo - relating to Earth - rocks, soil, & sediments
What is the purpose of tiny hairs in your nose?
To filter the air we breathe.
Which one of the Earth's systems includes rocks soil and sediments
geosphere
What main layer of the sun generates all the energy
core - nuclear fusion
Cells that work together to carry out a function make up a _______
tissue
What planet is known as the red planet because of the rust on its surface
Mars