A bird breaks out of its egg by __________.

A hammer is a __________ used to build something.

A scientist’s laboratory may be called a _______.

The photograph is ______ that the dog climbed a tree.

The definition of the word instinct is:

The definition of the word tool is:

The definition of the word lab is:

The definition of the word scientists is:

The definition of the word proof is:

The definition of the word method is:

The definition of the word theory is:

Choose the Key Word that best completes each sentence.

"Many _______ work in a lab."

Choose the Key Word that best completes each sentence.

"The bird’s _____ made it fly south in the fall."

Choose the Key Word that best completes each sentence.

"Betty the crow is ________ that some crows use tools.."

Choose the Key Word that best completes each sentence.

"Scientists may study animals in nature or in a_______."

Choose the Key Word that best completes each sentence.

"A hammer is a____."

Choose the Key Word that best completes each sentence

"______ observe animals to learn how they behave."

Choose the best word for each definition.

"An idea that explains something is a____"

Choose the best word for each definition.

"_____ means a plan or procedure for doing something."