______ is the passing of traits from parents to offspring.

Differences in characteristics between individuals of the same kind is called:

An ______ is the way an animal acts that it has not learned from its parents or environment.

Skills and behaviors taught by parents to their offspring are:

Traits that change as a result of changes in a living thing’s surroundings are called:

A ______ is a living thing of the same kind.

______ is the process by which the best-suited organisms survive and pass on their traits.

What kind of trait is "Chelsea has blonde hair"?

When a meerkat seeks shelter when it senses danger, this is an example of a:

Which of these is a learned trait?

What type of trait is "A bird building a nest"?

The process of an organism becoming a fossil is called:

The process of a new kind of living thing gradually developing from an existing living thing is called:

The slow change of the Earth’s climate is called:

A ______ is evidence such as a footprint, burrow, nest, or eggshell that indicates the presence of life in the past.

A ______ is the preserved remains or trace of an organism.

An organism becomes ______ when all of its kind are no longer alive.

A ______ is a very large, hot ball of glowing gases.

The Earth spins on its ______. It completes one full spin every 24 hours.

Any object that orbits another object is called a ______.

The changing shape of the moon’s directly sunlit portion, as viewed from Earth, is called the ______.

The Earth is divided into two parts. The upper part is called the ______

______ are chunks of rock, ice, water, and dust.

Asteroids and comets often break up into smaller pieces and form ______.

The Earth takes 365 days to complete one ______ of the Sun.

The revolution of the Earth around the Sun causes changes in weather patterns called __.

A ______ is a large ball of rock or gas that revolves around a central star.

______ is the search, observation, and collection of data in space.

A meteor that reaches the Earth’s surface is called a ______.

A ______ is an instrument that makes objects that are far away look closer and clearer.

All of the planets, their moons, and other objects orbiting the Sun make up our ______.

______ are large rocks that can range in size from just a few centimeters up to thousands of kilometers.

A meteoroid that enters the Earth’s atmosphere is called a ______.

______ are objects sent into space to make observations and collect data, which is sent back to Earth for analysis.

Molten rock beneath the Earth’s surface is called:

______ is the breaking down of rocks into smaller pieces.

The part of soil that is rich in the remains of dead organisms is called:

On Earth, rocks are continually forming, weathering, and changing form in a process called the:

Rock formed when igneous and sedimentary rocks are subject to heat and pressure is called:

Layers of sediment press together to form:

A ______ is an opening in the Earth’s surface through which magma flows as lava.

All ______ are made up of one or more minerals.

______ are non-living substances that are formed naturally in the Earth.

______ form when magma or lava cools and solidifies.

______ is a mixture of weathered rock, minerals, and other living and non-living things.

______ is the process of changing from a solid to a liquid.

______ is the amount of space matter takes up.

______ is the process of changing from a liquid to a gas.

______ matter has a fixed volume, but can change in shape.

A ______ can change in both shape and volume.

How much matter an object has is its ______.

______ is anything that has mass and volume.

______ matter has a fixed shape and volume.

Water in the form of a gas is called ______.

The process of changing from a gas to a liquid is called ______.