FINDING NATURE’S TREASURES 
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very, very fast and gets hotter and hotter until it be¬ 
gins to burn. Then you can see it.” 
“But you said the meteor was a kind of rock,” said 
Buddy. “Rocks won’t burn, will they?” 
“Yes, anything will burn if it gets hot enough,” 
said Uncle Jack. “These rock meteors usually burn up 
before they get to the earth. Sometimes they do hit the 
earth, and go far into the ground. Men have dug them 
out. That is how we know what they are made of.” 
