# Focus On Life Science: California Grade 7

## Chapter 6: Evolution—Evidence of Change

### Math Practice

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 1. What is the time range for Homo erectus pekinensis? Need a Hint? A) 700,000 B) 0.2 C) 500,000 D) 200,000 2. In years, what was the earliest the Neanderthal was alive? Need a Hint? A) 0.04 B) 40,000 C) 4,000 D) 400,000 3. In years, what was the latest the Neanderthal was alive? Need a Hint? A) 0.07 B) 70,000 C) 7,000 D) 700,000 4. What is the time range for Neanderthal? Need a Hint? A) 3,000 B) 0.03 C) 30,000 D) 300,000 5. In years, what was the earliest Homo sapiens was alive? Need a Hint? A) 100,000 B) 0.1 C) 10,000 D) 1,000,000 6. In years, what was the latest Homo sapiens was alive? Need a Hint? A) 3,000,000 B) 0.3 C) 30,000 D) 300,000 7. What is the time range for Homo sapiens? Need a Hint? A) 20,000 B) 0.2 C) 200,000 D) 2,000,000 8. Homo antecessor existed 0.78 to 1.0 million years ago. In years, what was the earliest Homo antecessor was alive? Need a Hint? A) 780,000 B) 0.78 C) 7,800,000 D) 78,000 9. Homo antecessor existed 0.78 to 1.0 million years ago. In years, what was the latest Homo antecessor was alive? Need a Hint? A) 1,000,000 B) 1 C) 10,000,000 D) 100,000 10. Homo antecessor existed 0.78 to 1.0 million years ago. What is the time range for Homo antecessor? Need a Hint? A) 2,200,000 B) 0.22 C) 220,000 D) 22,000