Practice Test 8

Read the passage: First, a caterpillar hatches from an egg and eats leaves. Next, it grows bigger, so its skin may shed. Then, it makes a chrysalis because it is changing inside. After some time, a butterfly comes out of the chrysalis. Finally, the butterfly can fly and lay eggs, and the cycle starts again. What happens after the caterpillar makes a chrysalis?

Read the passage: Long ago, people wrote letters by hand. Then, in 1844, Samuel Morse sent a message using the telegraph. Because the telegraph used electrical signals, messages could travel faster. As a result, news and letters could reach far-away places sooner. Later, the telephone was invented, so people could talk across long distances. What happened because the telegraph used electrical signals?