Inspire Science Grade 4 Unit 3 Module 1 Lesson 2

Behtany saw an exhibit at the science center on Earth's surface. She learned that Earth's surface has changed over time. What evidence has been collected by scientists to support this theory?

• Ancient people left photographs of Earth's surface behind for scientists.

• Fossils have been found that give clues to what Earth's surface looked like many years ago.

• Paleontologists have studied Earth's surface in the past and present and see no changes.

• We do not know what Earth's surface looked like long ago.

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A leaf imprinted on a rock, causing a ____________ to be made.

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Scientists can learn about ancient environments by studying________ in layers of sedimentary rock.

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A paleontologist found a crocodile fossil in the desert. Based on this discovery, what conclusions can you draw about what this landscape was like in the past?

• The climate was very cold and dry.

• The climate was very warm and had periods of rain.

• The climate had periods of cold winters and warm summers.

• The climate was very warm and dry.

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Most fossils are found in________

• Sandy layers

• Rocky Layers

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Fossil evidence provides scientists with information about

• how an environment has changed over time.

• rocks and minerals

• where earthquakes occur.

• how mountinas form.

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