Earth and Space Science 4th Grade Quarter 2

The imaginary line on which an object rotates, an imaginary straight line that runs through a body.

• Orbit

• Axis

• Constellations

• Space

The act of revolving around another object.

• Full Moon

• Earth

• Axis

• Orbit

What are constellations?

• a group of stars visible with a particular region of the night sky that appears to form a pattern.

• The Moon

• the act of revolving around another object

• having a curved shape that tapers at the end

The phase of the moon in which it is visible as a fully illuminated disk or circle.

• New Moon

• Half Moon

• Full Moon

• Cresent

The phase of the moon in which the moon is in conjunction with the sun and is invisible or appears as a narrow waxing crescent.

• Space

• New Moon

• Full Moon

• Crescent

The last fourth of the Moon's period of revolution around the Earth. The moon appears as a narrow waxing crescent.

• New Moon

• Last Quarter

• First Quarter

• Half time

The first fourth of the moon's period of revolution around the Earth. When the right half of the moon is illuminated.

• Old Moon

• New Moon

• Second Quarter

• First Quarter

Having a curved shape that tapers at the end.

• Crescent

• Full Moon

• Circle

• Erosion

The limitless expanse where all objects and events occur. Outer space is the region of the universe beyond Earth's atmosphere.

• Space

• Luster

• Streak

• Moon

A type of rock that forms from molten or partly molten material that cools and hardens.

• Sedimentary Rock

• Metamorphic Rock

• Igneous Rock

• Fossils