This week we covered how scientists use the EM spectrum to study the universe. Using the different EM waves to "see" distant objects. The use of reflecting and refracting telescopes and how they work.

This week we were going over advantages and disadvantages to renewable resources.

This week we finished groundwater and started on non-renewable energy resources. I also talk about how ping pong balls can be dangerous.

A short review on glaciers and ice sheets lesson misconceptions with some interesting science news at the end.