Scientists use _______ to measure things.

A ruler is used to measure __________ .

A clock is used to measure _________.

A ______________ is used to see something small.

A ______________ measures the temperature.

A measuring cup measures how much __________ there is.

A balance or a _______ measures weight.

When scientists put objects in certain groups, it is called ______.

The way an object feels is called its __________ .

Thomas Edison made a light bulb that lasted ________ that others.

Thomas Edison _________ on different metals to see which one worked the best.

Thomas Edison, like any other good scientist, collected and analyzed ______ .

There are many steps to the scientific method. One step is to __________ .

Use your __________ when making an observation.

Making a guess or a ___________ is also a step in the scientific method.

Collecting and analyzing ______ is another important step in the scientific method.

In a laboratory, use _______ to protect your eyes.

Always ___________ before and after conducting an experiment.

You need to conduct an _____________ to answer your hypothesis.

Jane Goodall studied ___________

Jane Goodall observed chimpanzees __________.

Jane Goodall did her work in _________.

Chimpanzees are __________ ___________

Chimpanzees do not have ________

Stephen Hawking studied _______ _______.

Gravity is so strong in black holes that not even _____ can escape.

Stephen Hawking encouraged people to think and ____ ____.

Stephen Hawking believed that AI machines would _____ _____ _____ for human beings.

Anybody can use the ______ ______ to answer a question.