1. Unit 8: Animals and Their Homes Theme 15: Home Sweet Habitat http://www.theodora.com/wfb/photos/australia/koala_bear_port_douglas_rainforest_habitat_wildlife_sanctuary_australia_photo_richard_powers.jpg

2. ground – the part of Earth that we walk on The ground was very wet from the rain. http://media.photobucket.com/image/wet%20ground/boxlock/t33a3a.jpg

3. tunnel – an underground passageway The machine went through the underground tunnel. http://www.odt.co.nz/files/story/2009/04/tunnel_drilling_equipment_in_operation_at_oceana_g_2050675066.jpg

4. creatures – all living animals There are many interesting creatures in the world. http://media.photobucket.com/image/pygmy%20marmoset/Eye_of_Isis/Pygmy_Marmoset-1.jpg

5. habitat – the place where an animal lives An animal feels safe in its habitat. http://www.1920-1200-wallpapers.com/1920x1200%20Images/Animals/spider_in_web_and_flowers.jpg

6. structure – something built from parts and put together It took a long time to build this structure. http://blog.sellsiusrealestate.com/wp-content/cemetery-skyscraper.gif

7. design – a plan for how something should be made or put together An architect will design the building. http://www.acticon.com.cy/Images/acticon-architects.jpg