7. An experiment is designed to determine which breed of dog sheds the most. What type of dog would be the best control group for the experiment?

a Poodle, because they don’t shed
a Labrador, because they shed a lot
a Great Dane, because they have short hair
a Collie, because they have long hair

Properties seen when one one substance changes to another are known as properties

Which of the following is part of the explanation or description of electromagnetic waves? (select all that apply) a. electrically charged molecules in a medium transfer their energy to nearby electrically charged molecules. b. a changing electric field causes a changing magnetic field. c. magnetic molecules in a medium transfer their energy to nearby magnetic molecules. d. a changing magnetic field causes a changing electric field.

Which planets are visible without a telescope