Review part 1

Front

Atoms of the same element with differing number of electrons are called ________.

Back

ions

Front

The summary at the end of an experiment that explains the results is...

Back

conclusion

Front

A worm turns away from light is an example of a worm ________.

Back

responding to its environment

Front

Iron-60 (atomic number 26) is an isotope that is often used to study meteorites. How many neutrons does iron-60 have?

Back

34

Front

What is the dependent variable in the experiment where Sam wanted to know if the color of the chair you sat in when taking a test affected your test grade?

Back

Grade on test

Front

What is an ion?

Back

An atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

Front

What is a conclusion in scientific experiments?

Back

A summary that explains the results of an experiment.

Front

What does it mean to respond to the environment?

Back

To react to changes in the surroundings.

Front

What is an isotope?

Back

Atoms of the same element that have the same number of protons but different numbers of neutrons.

Front

How do you calculate the number of neutrons in an isotope?

Back

Subtract the atomic number from the atomic mass.