UNIT X UNIT 8 | 313 B Use the vocabulary Echo read the terms and definitions with students. Then have students work in pairs to find the same terms in bold type in the text. Remind students to use context clues to determine the meanings of the words. Model if necessary. Then have pairs match the terms and definitions. Call on volunteers to share their answers with the class. ANSWERS 1. atom 2. element 3. electron, proton, neutron 4. molecule 5. nucleus C Exchange information Read the question and directions aloud. Tell students to point to the words in the text that support their responses. Have students complete Activity C in pairs. ANSWERS Atoms are the smallest units of matter that have the properties of an element, for example, hydrogen (H) and oxygen (O). D • Make connections Tell students to look at the photos. Ask: Who knows what these items are made of? (atoms) Help students understand that atoms make up everything we can see and touch. • Use new academic language Read aloud the new elements in Activity D to model pronunciation. Then have students work in small groups to answer the questions. Reconvene and have groups use academic language to share their answers. ANSWERS 1. copper 2. gold 3. silicone 4. coal 5. mercury 6. neon Sample answer: I know the elements, sodium (salt), nickel, tin, iron, silver, and aluminium. Practice Book p. 170 Assessment Program p. 148 COMMUNICATE PRACTICE FORMATIVE ASSESSMENT DIFFERENTIATED INSTRUCTION Scaffold Review sentences in which the new terms occur and discuss them with students. Provide additional time to practice using the new terms in cloze sentences. For example: Pennies are made with ____. The sign outside the theater is made with____. ____ is used to make jewelry. Amplify Give students access to resources so they can research an element and its uses. Direct students to create short presentations using items made with the element they have chosen or photos of such items. Remind students to make eye contact with the audience and speak with appropriate rate, volume, and intonation while they present. Talk and Write: New vocabulary Ask and answer in pairs: What are some new words from the lesson? Write: Choose one new word from the lesson. Write a sentence using the word. Write: Write about two elements you use every day. mercury copper silicone neon gold coal atom electron element nucleus molecule neutron proton B Use the vocabulary Identify the word or words to match each description. 1. smallest unit of an element that still has the properties of the element 2. oxygen, hydrogen 3. three particles that make up an atom 4. two or more atoms, for example, H20 5. the center of an atom C Discuss What is an atom? Use the text and the model on page 312 to discuss with a classmate. D Making connections Match the elements to the photos. What other elements do you know? 1. 4. 2. 5. 3. 6. UNIT 8 313 UNIT 8 / CONNECT TO SCIENCE
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