Science-Unit 1

A huge object in space that gives off heat and light

• star
• model

• visualize

• moon

A scientist who studies stars, planets, and other objects in the universe

• investigation

• astronomer

• explanation

• data

the only star in our solar system

• star

• moon

• sun

• orion

the sun, the planets that orbit the sun,
and other objects that orbit the sun

• model

• visualize

• stars

• solar system

an attempt to find out about something

• data

• explanation

• investigation

• model

observations or measurements recorded in an investigation

• information
• model

• investigation

• data

a description of how something works or
why something happens

• data

• explanation

• investigation

• model

something scientists make to answer questions
about the real world

• data

• investigation

• model

• visualize

something we observe to be similar over and over again

• explanation

• model

• sun

• pattern

the sun, the planets that orbit the sun,
and other objects that orbit the sun

• gravity

• pattern

• astronomer

• solar system