Answer the following question given this paragraph: Note Sometimes the word pure is added to substance, but this is not absolutely necessary. By definition, any single substance is pure. The smallest part of an element that maintains the identity of that element is called an atom. Atoms are extremely tiny; to make a line 1 inch long, you would need 217 million iron atoms. The smallest part of a compound that maintains the identity of that compound is called a molecule. Molecules are composed of atoms that are attached together and behave as a unit. Scientists usually work with millions and millions of atoms and molecules at a time. When a scientist is working with large numbers of atoms or molecules at a time, the scientist is studying the macroscopic view of the universe. However, scientists can also describe chemical events on the level of individual atoms or molecules, which is referred to as the microscopic viewpoint. We will see examples of Saylor URL: http://www. saylor. org/books. Q: The smallest part of an element that maintains the identity of that element is called what? A:
OPTIONS:
- lattice
- nucleus
- neutron
- atom

Answer: atom

Question: Answer the following question given this paragraph: An experiment generally tests how one variable is affected by another. The affected variable is called the dependent variable . In the plant experiment shown above, the dependent variable is plant growth. The variable that affects the dependent variable is called the independent variable . In the plant experiment, the independent variable could be fertilizersome plants will get fertilizer, others will not. The scientists change the amount of the independent variable (the fertilizer) to observe the effects on the dependent variable (plant growth). An experiment needs to be run simultaneously in which no fertilizer is given to the plant. This would be known as a control experiment. In any experiment, other factors that might affect the dependent variable must be controlled. In the plant experiment, what factors do you think should be controlled? ( Hint: What other factors might affect plant growth?). Q: In an experiment, what is the affected variable called? A:
OPTIONS:
- form variable
- independent variable
- control variable
- dependent variable
Answer: dependent variable

input with options: Answer the following question given this paragraph: An alloy is a mixture of a metal with one or more other elements. The other elements may be metals, nonmetals, or both. An alloy is formed by melting a metal and dissolving the other elements in it. The molten solution is then allowed to cool and harden. Alloys generally have more useful properties than pure metals. Several examples of alloys are described and pictured below. You can learn about another alloythe amazing alloy called memory wireat the following URL. If you have braces on your teeth, you might even have this alloy in your mouth!. Q: What is a mixture of metal with one or more other elements? A:
OPTIONS:
- an alkali metal
- a halloid
- a metalloid
- an alloy
output: an alloy

Q: Answer the following question given this paragraph: Plates move apart at divergent plate boundaries. This can occur in the oceans or on land. Q: Where do plates move apart in oceans and on land? A:

OPTIONS:
- volcanic ridges
- coastal zones
- unsettled plate boundaries
- divergent plate boundaries

A: divergent plate boundaries

input: OPTIONS:
- residual energy
- horsepower
- electrochemical energy
- kinetic energy Now, answer this question: Answer the following question given this paragraph: Thermal energy is converted to the kinetic energy of the moving piston inside the cylinder. The moving piston, in turn, can be used to turn a turbine or do other useful work. Q: Inside a cylinder, thermal energy is converted to what type of energy of the moving piston? A:
A:
output: kinetic energy

Question: 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? A:
OPTIONS:
- monocellular
- crude
- intricate
- multicellular
Answer:
multicellular