IBSE Final

Task 4

a. How do scientists know that dinosaurs really existed?

b. How certain are scientists about the way dinosaurs looked?

Why?

c. It is believed that about 65 million years ago the dinosaurs

became extinct (all died out). However, scientists disagree

about what had caused this to happen, i.e. they have different

conclusions about how and why they died. How are these

different conclusions possible if scientists have access to and

use the same set of data to derive their conclusions?

Nature of Science

Tentativeness; Human endeavor (creativity); Scientists have

different interpretations of the facts because of their backgrou

nd knowledge and experiences (subjectivity).

Role of human inference and creativity in developing scientific

explanations and models based on available data.