CDT 1 for Asynchronous Students - Craig Fisher | Library

Answer the questions by clicking on the correct answer. You will have two class periods in which to complete this exam.

2

What does all matter have whether it is moving or still?

2

What must you find out after conducting an experiment and collecting data?

2

At the end of an experiment, after analyzing your results, what must you draw?

2

Which tools can be used for collecting and analyzing data in science?

2

Which of the following is always a safety rule?

2

Early scientists thought the shape of the birds' wings helped birds fly. In their first experiments, they made wings the same thickness and shape from front to back. This didn't work. What might these scientists have done after they analyzed their results?

2

Which is an example of a conceptual model?

2

Which of the following is the best definition of science?

2

What is Physical Science mainly about?

2

What is matter?

2

What is energy?

2

What are scientific methods?

2

Before asking questions, what is a scientist likely to do?

2

What must a good hypothesis be?

2

Which of the following is a good way to analyze data?

2

At the end of an investigation, what should you do if you conclude that your results do not support your hypothesis?

2

What are some methods of communicating the results of scientific investigations?

2

In science, what is a scientific theory?

2

What is a scientific law?

2

Which of the following units would you use to express the volume of an irregular solid such as a rock?

2

Which of the following statements is true about an object's weight but NOT about its mass?

2

If you poured three liquids (that do not mix completely) into a beaker, how could you tell which one is the densest liquid?

2

What happens to a solid object with a density that is less than water when it is placed in water?

2

Which of the following is NOT an example of a physical change?

2

What kinds of changes in substances are always physical changes?

2

Why are chemical properties harder to observe than physical properties?

2

Which of the following is a chemical property of matter?

2

What makes characteristic properties useful to scientists?

2

How does a physical change differ from a chemical change?

2

Which of the following units would be best for describing the volume of mercury (liquid) used in an experiment?

2

Which of the following events is NOT a common sign that a chemical change has taken place?

2

What chemical property is responsible for iron rusting?

2

The motion of a 150g ball is more difficult to change than the motion of a 50g ball because the 150g ball has

2

What unit of density would be appropriate to describe a solid bar of silver?

2

Souring milk is an example of a

2

Malleability is an example of a

2

Which of the following has more inertia than a 100g object on Earth?

2

During physical changes, matter always retains its

2

To compare the densities of oil and water, pour the liquids into a container and observe how they

2

In a solid, the particles

2

Crystalline solids

2

Orange juice

2

A gas

2

At higher temperatures,

2

Balloons can be twisted into shapes because

2

How does a basketball under high pressure compare to a basketball under low pressure?

2

Boyle's Law states that for a fixed amount of gas

2

According to Charles's Law,

2

Which of these factors could affect the temperature at which water boils?

2

How do the molecules of water that evaporate from an open container differ from the molecules that remain?

2

Which of the following occurs when a liquid becomes a gas?

2

A drop of vinegar will flow and spread out but a drop of vegetable oil will form a bead. This is evidence that

2

The melting point of salt is the same as its

2

A liter of gasoline will boil at

2

In order for carbon dioxide gas to enter the air from dry ice, the dry ice must

2

A graph that shows the change in temperature of a substance as it is heated will show

2

The reverse of condensation is

2

Which of the following examples shows an exothermic change?

2

Hydraulic (liquid) systems, such as the brakes on a car, pass on forces because liquids tend to maintain a constant

2

A property of an element that does not depend on the amount of the element is called a(n)

2

An element's ability to react with an acid is an example of a

2

When two or more elements join together chemically,

2

Which of the following will not break down compounds?

2

How do elements join to form compounds?

2

Compounds found in all living things include

2

If a spoonful of salt is mixed into a glass of water, what is the water called?

2

What is a solid solution of a metal or a nonmetal, dissolved in a metal called?

2

A colloid has properties of both suspensions and

2

What is formed when the molecules of two or more substances are distributed evenly amongst each other?

2

How is a compound different from a mixture?

2

The molecules in both a solution and a colloid

2

Which of the following is NOT a reason that compounds are considered pure substances?

2

How could a sugar cube be dissolved more quickly in water?

2

The molecules in both a suspension and a colloid can

2

Which solid is more soluble at lower temperatures than at higher temperatures?

 Do NOT forget to turn in this assignment on Google Classroom after you have submitted it here! No credit will be awarded for unsubmitted assignments. 