Pytania badawcze: Wymarcie dinozaurów

Chwyć swój notebook lub laptop i odpowiedz na poniższe pytania. Następnie porównaj swoje odpowiedzi z sugerowanymi, które znajdziesz w artykule “Odpowiedzi na pytania badawcze”. Baw się dobrze! (Wskazówka: informacje potrzebne do odpowiedzi na pytania można znaleźć w filmach i artykułach.)

1. If species go extinct all the time, how do scientists know when a mass extinction occurred? How do they know which organisms went extinct?

2. Scientists think a giant asteroid impact and huge volcanic eruptions may have contributed to the mass extinction 65 million years ago. List at least three ways that these events could have changed the environment.

3. Extinction theories suggest that blocked sunlight would have decreased photosynthesis in plants. Which kinds of dinosaurs—plant-eaters or meat-eaters—would have been affected by a change in photosynthesis? Explain your answer.

4. Scientists say that dinosaurs are not extinct. In fact, you see them every day. What do they mean?