Most of these waves are blocked from entering the Earth's atmosphere by the ozone.
What are ultraviolet waves?
100
The Hubble Telescope was built for this reason.
What is so scientists could learn much more about the uniqueness of Earth and its place in our solar system and universe?
100
A plant's turning or bending movement of an organism toward or away from an external stimulus such as light, heat or gravity.
What is tropism?
200
A form of energy that is caused when vibrating materials produce waves that move through matter.
What is sound?
200
Solubility is also influenced by this.
What is temperature?
200
Scientists have developed this to help people protect themselves from harmful ultraviolet waves.
What is a UV index?
200
Scientists have learned that there are millions of galaxies in space, each containing these.
What are solar systems?
200
When plants grow toward a stimulus.
What is positive tropism?
300
Frequency and amplitude are examples of this.
What are different characteristics of sound waves?
300
This is the most common solvent.
What is water?
300
These types of waves are used in tanning beds.
What are ultraviolet waves?
300
Many of our modern conveniences such as microwaves and hand held calculators are the result of this.
What is products developed for use in the space program?
300
When plants grow away from a stimulus.
What is negative tropism?
400
Pitch and loudness are determined by these.
What are frequency and amplitude?
400
A property that describes the relationship between mass and volume.
What is density?
400
This type of energy is transferred through a material by the collision of atoms within the material.
What is thermal energy?
400
Part of NASA's fleet of "Great observatories" along with the Hubble Space Telescope, the Spitizer Space Telescope and the now de-orbited Compton Gamma Ray Observatory.
What is the Chandra X-ray?
400
The types of environments on Earth that are created by a wide diversity of physical conditions.
What are freshwater, marine, forest, desert, grasslands, mountain, rain forest, deciduous forest, boreal forest, tundra, and ice?
500
The human ear can receive sound waves as vibrations and convert them to signals that are processed by this organ.
What is the brain?
500
The boiling temperature of a pure substance is the same as this.
What is the maximum condensing temperature?
500
This type of energy tends to spread out through a material and from one material to another if they are in contact (conduction).
What is thermal energy?
500
The Chandra X-ray allows scientists around the world to obtain this information.
What are x-ray images of exotic environments to help understand the structure and evolution of the universe?
500
The growth and survival of organisms in any particular environment depends on this.
What are the physical conditions of that environment?