Answer the following question given this paragraph: Q: What two substances do plants give off when they make food? Choices: - water and oil - carbon dioxide and oxygen - chlorophyll and nitrogen - oxygen and water A:
oxygen and water
Answer the following question given this paragraph: You can see how Mendeleev organized the elements in Figure below . From left to right across each row, elements are arranged by increasing atomic mass. Mendeleev discovered that if he placed eight elements in each row and then continued on to the next row, the columns of the table would contain elements with similar properties. He called the columns groups . They are sometimes called families, because elements within a group are similar but not identical to one another, like people in a family. Q: In the periodic table, elements are arranged from left to right according to what property? Choices: - metallic mass - real mass - major mass - atomic mass A:
atomic mass
Q: Answer the following question given this paragraph: All cells have certain parts in common. These parts include the cell membrane, cytoplasm, DNA, and ribosomes. Q: All cells have certain parts in common. these parts include the cell membrane, cytoplasm, dna, and what? Choices: - lipids - chromosomes - crystals - ribosomes A:
A: ribosomes
Question: Answer the following question given this paragraph: Fluid friction is friction that acts on objects that are moving through a fluid. A fluid is a substance that can flow and take the shape of its container. Fluids include liquids and gases. If you've ever tried to push your open hand through the water in a tub or pool, then you've experienced fluid friction. You can feel the resistance of the water against your hand. Look at the skydiver in the Figure below . He's falling toward Earth with a parachute. Resistance of the air against the parachute slows his descent. The faster or larger a moving object is, the greater is the fluid friction resisting its motion. That's why there is greater air resistance against the parachute than the skydiver's body. Q: What is friction that acts on objects that are moving through a fluid? Choices: - fluid catalyst - fluid temperature - mass friction - fluid friction A:
Answer: fluid friction
*Question*
Answer the following question given this paragraph: Energy is the ability to cause changes in matter. For example, your body uses chemical energy when you lift your arm or take a step. In both cases, energy is used to move matteryou. Any matter that is moving has energy just because it's moving. The energy of moving matter is called kinetic energy. Scientists think that the particles of all matter are in constant motion. In other words, the particles of matter have kinetic energy. The theory that all matter consists of constantly moving particles is called the kinetic theory of matter . You can learn more about the theory at this URL: http://www. youtube. com/watch?v=Agk7_D4-deY . Q: What is the ability to cause changes in matter? Choices: - force - hydrogen - pressure - energy A:
**Answer**
energy
(Q).
Answer the following question given this paragraph: No doubt you've had a sore throat before, and you've probably eaten cheese or yogurt. If so, then you've already encountered the amazing world of prokaryotes. Prokaryotes are single-celled organisms that lack a nucleus. They also lack other membrane-bound organelles. Prokaryotes are tiny. They can only be viewed with a microscope (see Figure below ). But they are the most numerous organisms on Earth. Without them, the world would be a very different place. Q: What is a feature that prokaryotes lack? Choices: - epidermis - cell wall - plasma - nucleus A:
(A).
nucleus