Design a house that is earthquake safe. Label the features that make the house safe.

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

The passing of heat through a material while the material itself stays in place. a. radiation b. conduction c. convection

Which of these statements is true? a. quarks pair with leptons to form protons and neutrons. b. quarks pair with bosons to form photons. c. quarks pair with photons to form protons and neutrons. d. quarks pair with other quarks to form protons and neutrons. e. quarks pair with electrons to form protons.