Astronomy
Saturn is best known for its _________
Rings
any trembling or shaking of the earths crust
earthquake
a measure of the pull of gravity on an object
weight
the process of arranging animals or other things into groups according to their similarities
Classification
the chemical reaction that occurs when a substance reacts rapidly with oxygen
combustion
Uranus was discovered by ______
Hershels
magma that has reached the Earths surface
lava
The amount of matter that makes up pan object
Mass
the amount of body regions all insects have
3
the metric unit used to measure an objects mass
gram
First man to set foot on the moon
Neil Armstrong
Rock that is formed by sand and mineral particles pressed together
sedimentary
These are formed by electrons that are in orbit at about the same distance from the nucleus
shells
the ability of a crustacean to grow back lost body parts
Regeneration
a tiny group of two or more atoms that are bonded tightly together
molecules
First man to travel in space
Yuri Gagarin
rock that has been changed by heat or pressure into a new kind of rock
Metamorphic
the tiny particles that all matter is made of
atoms
animals that have jointed appendages, segmented bodies, and external skeletons
crustaceans
a substance composed of only one atom is know as
element
First American to orbit the Earth
John Glenn
formed by alternating layers of tephra and lava
composite volcano
the name given to the number of protons in an element
atomic number
spiders belong to this class
spiders
substances that are composed of more than one type of atom bonded together
compound
Man known as the father of modern rocketry
Robert goddard
formed from large amounts of very fluid lava that builds up
Shield volcano
positive particles found in the nucleus
protons
anything that takes up space and has mass
Matter
an object that allows a satellite to remain in the same spot above the earth at all times
Geostationary
formed by eruptions of mostly tephra and very little lava
Cinder
negative particles found in an atom
electrons
the amount of matter in one unit of volume
Density
Large clouds of gas and dust floating in space
Nebulae
a scientist who studies the structure of the earth
Geologist
Lacking an electrical charge
Neutral
Hot center of the sun
Core
Jupiter largest moon
Ganymede
the man who discovered that white light is a combination of many colors
Sir Isaac Newton
Brightest star in the night sky
Sirius
A single rise or depression in a wave
Pulse
Star system containing millions of billions of stars
Galaxy
The bending of any wave direction at the boundary between two wave media
refraction
Hottest region of the suns atmosphere
corona
a back and forth motion that repeatedly follows the same pattern
oscillation
found in the constellation Ursa Minor
Polaris
the length of one complete wave or oscillation
wavelength
the speediest planet
Mercury
is often called the morning star
Venus