Summary :

How do things get hot or cold? Explore the ways that things are heated and cooled and how that happens! Dr. Jeff and his team will work to show how temperature can have visible changes and how some of these changes are reversible.

Essential Questions:

• What forces can cause changes we see?

• Are the changes from heating and cooling reversible? Why or why not?

• How do we know if something heats up or cools down?

Posted by: Abby Jankowski

Summary :

How does the sun heat the Earth? What are the good things and harmful things about the sun? What ways can we protect ourselves from harmful sun rays? Dr.Jeff teaches students this and more in his video. At the end of the lesson, students can complete an experiment with an ice melting race.

Essential Questions:

• Where does the sun shine?

• What does sunshine do?

• How can we reduce the warming of the sun?

Posted by: Abby Jankowski