Unit 2: Energy Conservation and Transfer Focus: Solar Energy and Biomass Energy Day 3: Science Starter: Copy this question. Both hydrogen peroxide (H 2 O 2 ) and water (H 2 O) consist of the elements hydrogen (H) and oxygen (O). Which best explains why drinking hydrogen peroxide is not safe? Write the entire answer in your “My Response” box. Hydrogen peroxide has different properties because the elements are chemically bonded in a different ratio than the elements in water. Hydrogen peroxide has different properties because the elements are physically bonded in a different ratio than the elements in water. The elements in hydrogen peroxide are chemically altered after bonding into completely different elements. The elements in hydrogen peroxide are physically altered after bonding into completely different elements.

What do you think about this cartoon?

Plan for the Day  Couple of things aboutGeothermal Energy and Wind Energy  Foldable on solar/biomass-margin activity – vocab. term.  Work on project

Homework  Foldable on solar/biomass  Project  Read the short article on “Hydrogen Energy” and answer the 4 questions.

Wind farms Limitations to this energy resource?

Some people have found other important uses for wind turbines! A drone caught this man sunbathing on a wind turbine.

Environmental impact?

What are the environmental impacts of solar energy and biomass/biofuels? E.Q. Copy at the very top of page 4 (Yes).

Let’s watch a couple of Brainpop videos about biofuels and solar energy.

Let’s watch a Brainpop video about biofuels/biomass energy.  ls/preview.weml ls/preview.weml Listen for the following: 1.How do plants used for biofuel help with carbon in the air? 2.What is the most common biofuel?

Today’s foldable

This should be on your solar energy foldable – Definition - Photovoltaic cells (solar cells) convert sunlight (solar energy) directly into electrical energy (no turbines and generators) Uses: generating electricity/heating water

In the space beside today’s foldable, make a Venn diagram comparing and contrasting solar and biomass energy. Be sure to include environmental impacts.

Let’s watch a Brainpop video about solar energy. Listen for the following: 1.How is an electric current created in a photovoltaic cell? 2.What factors limit the use of solar energy to create electricity?  Brainpop-Solar Energy Brainpop-Solar Energy

Work on your energy project/foldable. The project is due next Weds. Don’t forget that the project has a written piece (proposal). Don’t drag your feet on this.

Wrap-up o What is the most important thing you learned today? Why is this important to you and your world? Be prepared to share.