What causes nickel and certain other metals to be magnetic?
a.
the motion of protons in their atoms
b.
the pattern of electrons in their atoms
c.
their atoms have more electrons than protons
d.
the influence of the earth's magnetic field
where is the magnetic field of a bar magnet the strongest? a. at the north and south poles b. between the north and south poles c. in the middle of the magnet d. next to the south pole

Hydrogen and helium are both members of?

How much energy will be transferred to your eardrum while listening to this sound for 1.0 min?

1. when conducting a test on what kind of music increases the growth of plants, all of the following would fail to meet to fair test standard except (1 point) using different kinds of plants. giving some plants more water than others. exposing the plants to different types of music. using nutrient-rich soil for one and lesser soil for others. 2. engineering uses scientific thinking to solve real-world problems. (1 point) true false 3. what does it mean to test a hypothesis? (1 point) pass a quiz on other scientists’ results analyze only the results from scientific sources not make assumptions about how an experiment will turn out see if the results of an experiment are what the scientist predicted