| A | B |
|---|
| The atomic number is the same as the number of what? | protons |
| Mass number is found by doing what? | protons + neutrons |
| An isotope is an atom with the the same number of protons but a differnt number of what? | neutrons |
| What is a carefully devised for making observations and collecting data? | experiment |
| What is a fact that is noticed as part of the scientific method? | observation |
| what is a judgement or opnion formed as a result of analyzing experimental data? | conclusion |
| What is a description of a phenomenon that has been repeatedly and uniformly observed in nature? | natural law |
| What is a purposed but unprovenexplaination made by observations? | hypothesis |
