_______________ is a scientist who studies stars, planets, and other objects in the universe.

________________ is something scientists make to answer questions about the real world.

________________ is a flat 2-D model of Earth.

________________ is a round 3-D model of Earth.

______________ is the only star in our solar system.

________________ is the sun, the planets that orbit the sun, and other objects that orbit the sun.

________________ is an arrangement of stars as seen from Earth.

_____________________ is something we observe to be similar over and over again.

__________ is a period of time that is 24 hours long and includes daytime and nighttime.

___________ is to move in a regular path around something.

___________ is the length of time it takes for Earth to orbit the sun once.

______________ is to make a picture in your mind using information from different sources.

_____________ is observations or measurements recorded in an investigation.

_______________ is information that supports an answer to a question.