I use this activity after we learn about the natural resources found inside the Earth and on the surface of our planet. There are flash cards that I laminate and add magnets to so that we can do a whole class sorting activity on the white board. Then there is a worksheet where students can do the same activity on their own. All the cards have pictures so this activity is great for ELL students as well.
Great for an assessment to see who is understanding the concept and who is not.