Science Exam

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How are science and technology related?

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Which is NOT a branch of natural science?

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What is a system of knowledge and the methods used to find that knowledge?

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What are the building blocks of all matter?

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Which of the following is an example of a safe laboratory procedure?

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In which step of the scientific method is information obtained through the senses?

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What is a physical or mental representation of an object or an event?

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What is a statement that summarizes a pattern found in nature?

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What is the most important safety rule?

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The prefix kilo- means...

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The prefix milli- means...

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Of the following, the most correct way to express density is...

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... is the closeness of a measurement to the actual value being measured.

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SI is based on units of...

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A measurement must include both a number and a(n)...

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What are the building blocks of all matter?

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In which step of the scientific method is information obtained through the sense?

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On the Celsius scale, at what temperature does water freeze?

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On the Celsius scale, what temperature is Absolute Zero at?

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Why are scientific models important?

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How is 0.00016 written in scientific notation?

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Change 21 kilometers to meters?

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Timers at a swim meet used four different clocks to time an event. Which recorded time is most precise?

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On the Celsius scale, at what temperature does water boil?

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How do scientists who speak different languagse make their data understandable to one another?

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A measurement standard is defined as...

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The correct symbol of the SI unit of temperature is...

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The correct symbol for milliliter is...

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The SI unit that is used in the United States to measure time is the...

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A unit of measurement that is obtained by combining other units is a ... unit

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What type of graph is represented by Figure 1-1?

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Figure 1-1 shows how a steel ball moved during an experiment. Average speed is calculated by dividing total distance by time (v=d/t). Did the steel ball speed up, slow down, or remain at the same speed throughout the experiment?

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How do scientists communicate the results of investigations?

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What is a peer review?

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Why are peer reviews important?

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If the relationship between manipulated variable and the responding variable is a direct proportion, what will a line graph of this relationship look like?

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A(n) ... is a way of organizing data that is used to show changes, trends, or patterns that occur in related variables

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The ... is the variable that changes in response to the manipulated variable

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What measurements are compared in Figure 1-3?

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Use Figure 1-3 to determine the approximate total annual precipitation.

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In Figure 1-3, which month had the lowest amount of precipitation?

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In a graph, the variable on the horizontal axis is the...

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The type of graph that would be used to show how some fixed quantity is broken down into parts is a ...

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Which of the following are PURE SUBSTANCES?

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A substance that is made up of only one kind of atom is a(n)...

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What is the symbol for aluminium?

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If a MATERIAL contains three elements joined in a fixed proportion, it is a(n)...

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Which of the following is a characteristic of a MIXTURE?

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A mixture that appears to contain only one substance is a(n)...

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Which of the following is a heterogeneous mixture?

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Which of the following is malleable?

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Which of the following has the highest VISCOSITY?

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A substance has a melting point of 0 degrees Celsius and a boiling point of 100 degrees Celsius. The substance is most likely...

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A material that is malleable and conducts electricity is most likely...

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Filtration can be used to separate mixtures based on ...

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What method can be used to separate parts of a liquid mixture when the entire mixture can pass through a filter?

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When a physical change in a sample occurs, which of the following does NOT change?

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Which of the follwing is a physical change?

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Flammability is a material's ability to burn in the presence of ...

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A substance that has high reactivity ...

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Which of the following is a chemical change?

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Ninety-nine percent of all the matter that can be observed in the universe exists as ... (Hint: What are the stars and sun made of?)

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Matter that has a definite volume but no definite shape is a ...

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A gas has ...

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In which of the substances in Figure 3-1 are the forces of attraction among the particles so weak that they can be ignored under ordinary conditions?

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The temperature and volume in a closed container of gas remain constant. If the number of particles of gas is increased, the gas pressure will ...

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What is the result of a force distributed over an area?

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Collisions of helium (a gas) atoms and the walls of a closed container cause ...

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Which of the following factors affect the pressure of an enclosed gas?

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The law that states that the volume of a gas is DIRECTLY proportional to its temperature in kelvins if the pressure and the number of particles is constant is ...

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Boyle's law states that the volume of a gas is INVERSELY proportional to its pressure if the ...

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The phase change that is the reverse of condensation is ...

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During a phase change, the temperature of a substance ...

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During what phase change does the arrangement of water molecules become more orderly?

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The phase change in which a substance changes from a liquid to a gas is ...

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The phase change in which a substance changes from a gas directly to a solid is ...

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The phase change in which a substance changes from a solid to a liquid is ...

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The phase change in which a substance changes from a solid to a gas or vapor without changing to a liquid first is ... (EX. - Just like dry ice)

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The Greek philosopher Democritus coined what word for a tiny piece of matter that cannot be divided?

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Democritus thought that matter was made of tiny particles ...

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According to John Dalton's observations, when elements combine in a compound, ...

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Which of the following most accurately represents John Dalton's model of the atom?

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J.J. Thomson's experiments provided evidence that an atom ...

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The diagram in Figure 4-1 shows the results of Rutherford's gold foil experiment. What caused some of the alpha particles to bounce straight back from the gold foil?

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Rutherford's gold foil experiment provided evidence for which of the following statements?

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Who provided evidence for the existence of a nucleus in an atom?

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In an atomic model that includes a nucleus, positive charge is ...

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Which statement best describes Rutherford's model of the atom?

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Which subatomic particle has a negative charge?

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Which statement about subatomic particles is true?

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Which of the following is unique for any given element?

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The number of protons in one atom of an element is that element's ...

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To find the number of neutrons in an atom, you would subtract ...

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Which statement is true about oxygen-17 and oxygen-18?

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In Niels Bohr's model of an atom, electrons move ...

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What can you assume has happened if an electron moves to a higher energy level?

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What do scientists use to predict the locations of electrons in atoms?

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What does the electron cloud model describe?

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Which of the following provides the best analogy for an electron in an atomic orbital?

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Mendeleev arranged the known chemical elements in a table according to increasing ...

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Mendeleev gave the name eka-aluminium to a(n) ...

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The usefulness of Mendeleev's periodic tables was confirmed by ...

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Which general statement does NOT apply to metals?

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Figure 5-1 shows a portion of a blank periodic table. Identify the segments labeled A and B.

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Moving from left to right across a row of the periodic table, which of the following values increases by exactly one from element to element?

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The unit for atomic mass is ...

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One twelfth the mass of a carbon-12 atom is used to define a(n) ...

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Which list of elements contains only metals? (Hint: which side are metals on and where are the following elements located?)

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At room temperature, non of the metals are ...

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Group 7A of the periodic table contains the ...

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Two highly reactive elements in Period 2 are the metal lithium and the ...

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Atoms of the most reactive elements tend to have ...

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As you move from left to right across a period, the number of valence electrons ...

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Compared with Group 2A elements, Group 6A elements have ...

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A member of the boron family has three valence electrons, while a member of the nitrogen family has ...

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Which of the following Group 1A elements is the most reactive?

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Which of the following Group 7A elements is the most reactive?

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Among the alkali metals, the tendency to react with other substances ...

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To keep them from reacting, some highly reactive elements are stored in ... (Hint: what is a noble gas?)

December Review

Science Exam

How are science and technology related?

Which is NOT a branch of natural science?

What is a system of knowledge and the methods used to find that knowledge?

What are the building blocks of all matter?

Which of the following is an example of a safe laboratory procedure?

In which step of the scientific method is information obtained through the senses?

What is a physical or mental representation of an object or an event?

What is a statement that summarizes a pattern found in nature?

What is the most important safety rule?

The prefix kilo- means...

The prefix milli- means...

Of the following, the most correct way to express density is...

... is the closeness of a measurement to the actual value being measured.

SI is based on units of...

A measurement must include both a number and a(n)...

What are the building blocks of all matter?

In which step of the scientific method is information obtained through the sense?

On the Celsius scale, at what temperature does water freeze?

On the Celsius scale, what temperature is Absolute Zero at?

Why are scientific models important?