Advertisement Upgrade to remove ads

Sum of Its Parts Science 5th Grade


anything that has mass and takes up space


the smallest unit of an element that has the properties of that element


positively charged particles located in the nucleus


these have no electrical charge, but add to the mass of the atom; they are found in the nucleus


negatively charged particles found outside the nucleus

Periodic Table

a chart that classifies elements by their properties


how much matter is in an object; it is measured in kililograms


the pull of gravity on an object


how much space a sample of matter takes up; can be found by length x width x height or see how much water it displaces


a substance made of only one kind of atom


a substance made of two or more different elements


The amount of matter in a given space; is found by Mass divided by volume

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again


Reload the page to try again!


Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording