(Q).
Answer the following question given this paragraph: Ahhhh! A tall glass of ice-cold lemonade is really refreshing on a hot day. Lemonade is a combination of lemon juice, water, and sugar. Do you know what kind of matter lemonade is? It's obviously not an element because it consists of more than one substance. Is it a compound? Not all combined substances are compounds. Someincluding lemonadeare mixtures. Q: Combined substances are either compounds or what? Choices: - solutions - concentrations - combinations - mixtures A:
(A).
mixtures

(Q).
Answer the following question given this paragraph: Power plants and factories account for more than a quarter of fossil fuel use. Power plants burn fossil fuels to generate electricity. Factories burn fossil fuels to power machines. Q: What do power plants burn to generate electricity? Choices: - nuclear fuel - biofuel - timber - fossil fuels A:
(A).
fossil fuels

(Q).
Answer the following question given this paragraph: Meteoroids are smaller than asteroids, ranging from the size of boulders to the size of sand grains. When meteoroids enter Earth's atmosphere, they vaporize, creating a trail of glowing gas called a meteor. If any of the meteoroid reaches Earth, the remaining object is called a meteorite. Q: When a meteoroid reaches earth, what is the remaining object called? Choices: - comet - meteor - orbit - meteorite A:
(A).
meteorite