WONDER #1681: How Do Scientists Know How Old Ancient Bones Are?

Question 1 of 3

Normal carbon is also known as what?

1. carbon-10
2. carbon-12
3. carbon-13
4. carbon-14

Question 2 of 3

Carbon-14 is a what of normal carbon?

1. isotope
2. carbontrope
3. radiotope
4. topographical

Question 3 of 3

Carbon-14’s half-life is approximately how many years?

1. 57
2. 570
3. 57,000
4. 5,700

Check your answers online at https://www.wonderopolis.org/wonder/how-do-scientists-know-how-old-ancient-bones-are.