The ____ captured images of the Earth from space. One of the most interesting ____ of Mars is its large volcanoes. The ____ of Earth is made up of nitrogen, oxygen, and other gases. The laboratory is equipped with advanced ____ for conducting experiments. The Great ____ in the United States are known for their wide, flat plains. The temperature dropped by several ____ overnight. Scientists ____ if there is life on other planets. The river flowed through the ____ between the mountains. The rover was able to ____ signs of water on Mars. The scientist presented ____ that supported his theory. Understanding the ____ principles of physics is important for many scientific studies. The ____ ocean stretches as far as the eye can see. The discovery of water on Mars could ____ new missions to explore the planet further. ____ can make it difficult to see and breathe. The ____ of the desert includes sand dunes and rocky areas.

VOCABULARY PRACTICE B1.6 TEENS

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