Answer the following question given this paragraph: Scientists have long wanted to find the most basic building blocks of the universe. They asked, "what are the fundamental particles of matter that cannot be subdivided into smaller, simpler particles," and "what holds these particles together?" The quest for fundamental particles began thousands of years ago. Scientists thought they had finally found them when John Dalton discovered the atom in 1803 (see the timeline in Table below ). The word atom means "indivisible," and Dalton thought that the atom could not be divided into smaller, simpler particles. Q: John dalton thought that what unit, which means "indivisible", could not be divided into smaller, simpler particles? Choices: - electron - nucleus - neutron - atom A:
atom
(Question)
Answer the following question given this paragraph: Birds learn through conditioning to avoid eating monarch butterflies. Q: How do birds learn to avoid eating monarch butterflies? Choices: - instinct - temperature - digestion - conditioning A:
(Answer)
conditioning
Ques: Answer the following question given this paragraph: Conserving heat is also important, especially in small mammals. A small body has a relatively large surface area compared to its overall size. Because heat is lost from the surface of the body, small mammals lose a greater proportion of their body heat than large mammals. Mammals conserve body heat with their hair or fur. It traps a layer of warm air next to the skin. Most mammals can make their hair stand up from the skin, so it becomes an even better insulator. Even humans automatically contract these muscles when they are cold, causing goosebumps (see Figure below ). Mammals also have a layer of fat under the skin to help insulate the body. This fatty layer is not found in other vertebrates. Q: In mammals, hair or fur help conserve bodily what? Choices: - food - energy - water - heat A:
Ans: heat
(Q).
Answer the following question given this paragraph: Your feet feel cold as you walk barefoot across the living room carpet in your cold house and then step onto the kitchen tile floor. This result is intriguing, since the carpet and tile floor are both at the same temperature. The different sensation you feel is explained by the different rates of heat transfer: the heat loss during the same time interval is greater for skin in contact with the tiles than with the carpet, so the temperature drop is greater on the tiles. Some materials conduct thermal energy faster than others. In general, good conductors of electricity (metals like copper, aluminum, gold, and silver) are also good heat conductors, whereas insulators of electricity (wood, plastic, and rubber) are poor. Q: There is a positive correlation between the ability to conduct thermal energy and what other energy, as exemplified by metals? Choices: - nuclear - gravitational - elastic - electricity A:
(A).
electricity
Ques:Answer the following question given this paragraph: Mapping is an important part of Earth Science. Topographic maps use a line, called a contour line, to show different elevations on a map. Contour lines show the location of hills, mountains and valleys. A regular road map shows where a road goes. But a road map doesn't show if the road goes over a mountain pass or through a valley. A topographic map shows you the features the road is going through or past. Let's look at topographic maps. Q: What is the name of the line used in topographic maps that shows different elevations? Choices: - a patch line - a crater line - a curve line - a contour line A:

Ans:a contour line
Ques: Answer the following question given this paragraph: All living cells have certain things in common. Besides having the basic parts described above, all cells can perform the same basic functions. For example, all cells can use energy, respond to their environment, and reproduce. However, cells may also have special functions. Multicellular organisms such as you have many different types of specialized cells. Each specialized cell has a particular job. Cells with special functions generally have a shape that suits them for that job. Q: What kind of organisms have many different types of specialized cells with particular jobs? Choices: - monocellular - crude - intricate - multicellular A:
Ans:
multicellular