His great curiosity about all sciences has made him what he is.

This book tells you what a black hole is like.

This is what we call DNA.

Japanese scientists created the blue LED, which led to the Nobel Prize.

Blood contains iron. That is why it is red.

Choose whatever you like for your research subject.

That planet is almost the same size as the earth.

As is often the case with new science, his discovery was ignored at first.

Take a deep breath, and your heart rate will slow down.

You need not only accuracy but also speed in this type of test.

Bring an extra eraser to the test in case you drop one.

My father is taking license exams so that he can advance his career.