6th grade describe the similarities and differences between primary and secondary sources. in two sentences.

A primary source saw something first-hand. A secondary source only heard about it.

The most basic similarity between primary & secondary sources is "They both Convey Information","Neither is an Absolute Objective Source" and in some special situation, a single source can be both at the same time.

Now, Difference is that, Secondary sources analyzes, interprets and explains primary sources, while they are independent and doesn't include any picture, articles, tools etc. which secondary sources do

Hope this helps!

55. i don’t no. but zhongshan