Chapter 5 Lesson 3 PDF

____J.— - I What Ate Some Different Food Chains? Why It Matters... Food chains exist wherever living things are found. In an ocean food chain, tiny floating plants and seaweed use solar energy to make food. The fish eat the plants and seaweed. Later, some of the fish may become a meal for a shark. P...

____J.— - I What Ate Some Different Food Chains? Why It Matters... Food chains exist wherever living things are found. In an ocean food chain, tiny floating plants and seaweed use solar energy to make food. The fish eat the plants and seaweed. Later, some of the fish may become a meal for a shark. PREPARE TO INVESTIGATE Inquiry Skill Research When you do research, you learn more about a subject by looking in books, searching the Internet, or asking science experts. Materials plant and animal picture cards Science and Math Toolbox For step 1, review Making a Chart to Organize Data on page H1O. B58 Chapter 5 LI STEP 1 Things Up Environments Peeert Ocean Rainforest procedure Work in a group. In your 0 Collaborate Science Notebook, make a chart like the one shown. Cut out a set of plant and 3 Classify animal picture cards provided by your teacher. Find cards that show plants and animals that live in a desert. Group these cards together. Write the names of these organisms in your chart. STEP 2 I Repeat step 2 for an ocean 0 Research environment and for a rainforest environment. If necessary, use reference books or the Internet to check where an organism lives. Models When all of the organisms 0 Use have been classified in your chart, make a food chain for each environment. Line the cards up in order. Each food chain should start with a producer. Write or draw each food chain in your Science Notebook. Conclusion 1. Infer What is the role of the Sun in each food chain? 2. Communicate Explain why you arranged each food chain the way you did. - Investigate More! Solve a Problem Suppose you want to set up an aquarium with several kinds of fish. What would you need to know about the fish’s food chains? Food Chains in Environments VOCABULARY I. aquatic habitat p. B60 terrestrial p. 862 habitat MAIN IDEA Food chains exist wherever livi ng things are found. The organisms in each foo d chaij vary based on their environment. READING SKILL Compare and Contrast Use a chart to compare and contrast food chains in aquatic habitats and terrestrial habitats... S S. S I I S a. S S S. a. S a. S Food Chains in Water Animals live in many different places, or habitats. Tide pools are the habitat of som e ocean animals. A tide pool is an area at the edge of the ocean where water collects in spaces between rocks. A tide pooi is one kind of aquatic (uh KWAT ihk) habitat. An aquatic habitat is a place where organisms live in or on water. In tide pools, seaweed and algae are the producers. Like producers on land, they use the energy from sunlight to make food. Portuguese man-of-war, blue crab 860 Chapter 5 Lesson 3 periwinkle I ‘ aquatic habitat is also home to herbivores, and omnivores. Look at the picture of car1i\T0S! tide pool. What food chains can you find? the L1 CONTRAST Compare a producer an aquatic habitat with one that that lives in lives on land. oystercatcher I sf1 corugrass - 1t sea star crab “U - Tide Pool Food Chain Cordgrass This grass captures energy from the Sun to make food. Periwinkle snail This snail eats and scrapes plants from rocks with its mouth. Blue crab This crab uses its strong claws to capture and eat snails. E61 Food Chains on Land People live in terrestrial (tuh REHS tree uhi ) habitats. A terrestrial habitat is a place where org anisms live on land. A desert is one kind of terrestrial habitat. Desert regions usually get little rainfall, so the y are very dry. Organisms that live in the desert are adapted to the dry conditions there. Desert producers inc lude grasses, wildflowers, and cactuses. Cactuses stor e large amounts of water in their cells. Desert herbivores include insects and small animals like rabbits. Desert herbivores that eat cactus are able to get both energy and water from the plants they eat. I prickly pear cactus I ‘1. Ii Evening primrose This plant blooms at night, when desert temperatures are cool. Chapter 5 Lesson 3 Antelope squirrel This squirrel eats primrose, seeds, and small animals. Rattlesnake This snake eats rabbits, mice, squirrels, and birds. I organ pipe cactus turkey vulture ar North American jackrabbit coyote F diamondback L) rattlesnake. The organisms in a desert form many food chains. Each food chain starts with a producer that uses the Sun as its energy source. F* revening primrose Snakes are common desert carnivores. They capture and eat lizards, birds, and small animals. Hawks, owls, and vultures feed on animals such as snakes, mice, and rats. Food is difficult to find in the desert. This may be why many desert animals are omnivores. An animal is less likely to go hungry when its diet includes both plants and animals. But, in all terrestrial food chains, each animal depends on the plant that is at the start of the food chain. - COMPARE AND CONTRAST How are snakes and hawks similar? B63 Review o MAIN IDEA What do Food chains in aquatic habitats are made up of plants and animals that live in or on water. Food chains in terrestrial habitats are made up of plants and animals that live on land. [. F food chains in aquatic and terrestrial habitats have in common? o VOCABULARY What does terrestrial habitat mean? o READING SKILL: Compare and Contrast How are food chains in aquatic and terrestrial habitats different? o CRITICAL THINKING: Apply What would happen to the number of herbivores in a food chain if most of the producers disappeared? forHome and School MATH Draw Lines of Symmetry Suppose that an enormous sea star has been discovered in the Pacific Ocean. Draw the sea star with five arms. Draw a line of symmetry. Suppose the sea star loses one arm, and in its place two new arms grow back. Draw the sea star with its new arms. Does it have the same line of symmetry as the first sea star you drew? 0 INQUIRY SKILL: Research How could you find out what food is best to feed a pet iguana? 4 In an aquatic habitat, the producer in a food chain A. gets its food from water. B. is likely to be an herbivore. C. uses solar energy to make food for other producers. D. uses solar energy to make its own food. SOCIAL STUDIES Write a Journal Entry The Inuit are a people who live near the ocean in the snowy Arctic. The Yanomano live in the hot rainforests of South America. Imagine you have traveled to visit both groups. Write a journal entry comparing the food sources of each group. 2 B64. Chapter 5. Iesson. TEST PREP Tech no logy Visit www.eduplace.com/scpl to find out more about terrestrial habitats. fr 5011 Conservationist Soil conservationists are experts n soil. They develop ways to help farmers keep their land fertile, moist, and rich in nutrients. They also advise government agencies and businesses on how to use land without harming it. ply What It Takes!. A degree in environmental studies, forestry, or agriculture. Investigative and research skills h at Ecotoutist Guide As an ecotourist guide, you could find yourself leading safaris in Africa, exploring South American rainforests, or hiking glaciers in Alaska. Ecotourist guides take adventure-seekers on vacations to natural areas. They teach people about protecting wildlife and the environment. )re. ke ke What It Takes! A high-school diploma An interest in nature, ecology, and adventure — ,- — ‘4 1 1’ B65 — ,kL.3, Big ot I I Its jaws ate as long as a towboat. The amount of food it eats each day can weigh more than a car. So this humpback whale must eat lots of really big fish—right? Wrong! The humpback mainly eats krill—tiny creatures smaller than your pinky. Why? KrilI are one of the most plentiful foods in the ocean.They are part of a food chain that begins with tiny ocean plants called phytoplankton. Krill eat these microscopic plants, and whales and many fish eat the krill.There are so many krill in the ocean, the humpback can eat them by the ton! I The krill is a crustacean, similar to a shrimp. It has a hard shell and no backbone. EGG Chapter 5 ] I READING Compare and Contrast No teeth, no problem! Instead of teeth, the humpback has baleen. These comb-like plates hang from the whale’s upper jaw. The whale scoops up water in its huge mouth and squeezes it through the baleen, which traps the krill. 1