8th Science Semester 1 Review

to get larger- moon phases from newto full moon as the lit surface seen from Earth grows larger

waning

Which moon phase: "None of the moon is lit".

a push or a pull

the orbit of an object around another object in space

number to the LEFT of the chemical formula, tells how many molecules are present

THEORY in astronomy: universe originated billions of years ago in an explosion

A small number to the lower right of the symbol, tells how many atoms are present.

to get smaller – moon phases from full to new moon; lit surface seen from Earth grows smaller

an object’s speed and direction at a given instant

change in an object’s in an object’s speed or direction (it’s velocity) over time

Which moon phase: "More than half of the visible surface of the moon is lit".

A change that takes place when two or more substances interact to form new substances.

Who is your favorite teacher?

waxing

Which moon phase: "The moon is completely lit".

compound or element that changes during a chemical reaction

an object’s tendency to resist a change in motion

Which tide occurs at fist and last quarter moon, and is the LEAST extreme?

spinning of a planet, Moon, sun, or other object, around its axis

when the total of all forces acting on an object equals 0 & the object’s motion does not change

when the net force on an object does NOT equal 0; results in the object changing its motion

distance light travels in one year, equal to 9,500,000,000,000 Km

distance traveled by an object in a given amount of time

What is a charged atom called?

Which tide occurs at full moon and new moon, and is the MOST extreme?

compound or element that is the result of a chemical reaction

cloud of gas and dust in space, in which stars form

Which moon phase: "Less than 1/2 of the visible surface of the moon is lit. Like a banana"

group of millions of stars; Earth is part of the Milky Way _______.

Spectrum-full range of __________ waves (forms of energy that travel through empty space