Biology
Chemistry
Physics
Earth science
Astronomy
100

Exoskeleton in insect made up of

Chitin

100

Process by which a reactant loses one or more electrons

Oxidation

100

Thermal energy that flows from a substance of higher temperature to a substance of lower temperature

Heat

100

The removal and transport of pieces of preexisting rock

Erosion

100

Distance light travels in a year

Light year
200

Cell that receives and transmits electrical signals from one part of the body to another

Neuron

200

Combination of two or more substances in which each substance retains its own properties

Mixture

200

A Projectile or small body that orbits a larger body.

Satellite

200

Hill or mountain formed by extrusion of lava, ash, and rock fragments

Volcano

200

The first four planets orbiting the Sun; Mercury, Venus, Earth, and Mars are collectively called

inner planets

300

DJ - Cells on which hormones can produce their affect

Target cells

300

Dj - Which of the following halogens does NOT replace the other

halogens from their compounds?

w) fluorine

x) iodine

y) bromine

z) chlorine

X

300

Which of the following colors of visible light has the longest

wavelength?  Is it:

w) violet

x) green

y) yellow

z) red

Red

300

Which of the following gases is given off in the acid test of a

carbonate mineral?

w) chlorine

x) nitrogen

y) carbon dioxide

z) sulfur dioxide

CO2

300

I am a type of star with a relatively low effective temperature (3,000 to 4,000 Kelvins), and have a large radius-about 100 times that of the Sun.  What am I?

Red Giant