Greenhouses

What is the purpose of a greenhouse?

Greenhouses• greenhouse (also called a glasshouse) is a

building in which plants are grown. These structures range in size from small sheds to very large buildings. A miniature greenhouse is known as a cold frame.

How do they work?• it heats up because incoming

visible solar radiation (for which the glass is transparent) from the sun is absorbed by plants, soil, and other things inside the building. Air warmed by the heat from hot interior surfaces is retained in the building by the roof and wall.

What are they made from?

• Glass• Plastic

• Thought Question- How could you make a greenhouse with materials around your house?

Greenhouses

Communities working together…

• http://www.treehugger.com/green-food/new-york-school-kids-build-their-own-greenhouse-grow-their-own-veggies.html

Composting

Earth Materials-Compost Piles

• Click on the websites to learn more about composting…

http://michigan.gov/kids/0,1607,7-247-49067-62499--,00.htmlhttp://www.ecy.wa.gov/programs/swfa/kidspage/compost.htmlhttp://www.ehow.com/how_6396689_start-compost-pile-kids.html

Earth Materials

http://www.blm.gov/nstc/soil/Kids/index.html

What are earth materials?

• * Earth materials are solid rocks and soils, water, and the gases of the atmosphere. The materials have different properties which make them useful for different purposes, such as buildings, fuels, and food.

• * Soils have properties of color and texture; capacity to hold water, and grow plants.

• * Fossils provide evidence about plants and animals that lived long ago and the nature of the earth at that time.