Leandra is baking cookies, and they are ready to come out of the oven. Before she takes them out of the oven, she puts her mittens on. Why does Leandra do this?

Which piece of evidence contradicts the steady state theory? a. the universe b. the farther a galaxy is from earth, the faster it is moving away from us c. galaxies are moving away from earth d.

What two types of particles exist within an atomic nucleus? Select one: a. Protons and neutrons b. Protons and neutrinos c. Positrons and neutrons d. Neutrons and electrons

How has increased energy use associated with scientific advancements affected society? a. It has led to an increase of the concentration of atmospheric carbon dioxide. b. It has led to an increase in hazardous wastes from mining operations. c.

What happens when oxygen reacts with sodium? A. Electrons become delocalized among the atoms. B. Electrons move form the sodium atoms to the oxygen atoms. C. Electrons move from the oxygen atoms to the sodium atoms. D.

The earth's magnetic field extends: A-from the earth's core to outer space B-from the center of the earth to the sun C-from the earth's surface to the upper atmosphere

Which of the following changes can happen when the forces on an object are unbalanced? a. The object speeds up b. the object slows down c. the object changes direction d. all of the above

Technician A says that engine parts should be be cleaned before a thorough test can be done to detect cracks. Technician B says that pressure testing can be used to find cracks in blocks or cylinder heads. Who is right?

How are mathematics and science related?

Radio telescopes detect waves with a wavelength of roughly 10 m. True False

2. A 0.30 kg ball is dropped onto a concrete driveway. The ball's velocity before impact is 4.5 m/s and after impact is 4.2 m/s. What is the change in the ball's momentum?