Predictions are often written in the form of “if, and, then” statements, as in, “if my hypothesis is true, and I were to do this test, then this is what I will observe.” Following our sparrow example, you could predict that, “If sparrows use grass because it is more abundant, and I compare areas that have more twigs …

Is it possible for scientists to study events that happened or animals/plants that lived millions of years ago? a. Yes. For example, observe modern animal behavior, structure, and function, and compare them to the structures of fossilized animals to deduce the function of the fossilized structures.

When conducting research, scientists use the scientific method to collect measurable, empirical evidence in an experiment related to a hypothesis (often in the form of an if/then statement), the results aiming to support or contradict a theory.

The Six Steps

• Purpose/Question. Ask a question.
• Research. Conduct background research.
• Hypothesis. Propose a hypothesis.
• Experiment. Design and perform an experiment to test your hypothesis.
• Data/Analysis. Record observations and analyze the meaning of the data.
• Conclusion.

The first step in the Scientific Method is to make objective observations. These observations are based on specific events that have already happened and can be verified by others as true or false. Step 2. Form a hypothesis.

The definition of a prediction is a forecast or a prophecy. An example of a prediction is a psychic telling a couple they will have a child soon, before they know the woman is pregnant.

1. Verification: The use of empirical data, observation, test, or experiment to confirm the truth or rational justification of a hypothesis.
2. The general question of scientific inference can be formulated in these terms: Given a body of evidence E and a hypothesis or theory T, how do we measure the warrant of T given E?

Another way to define a conditional statement is to say, “If this happens, then that will happen.” The hypothesis is the first, or “if,” part of a conditional statement. The conclusion is the second, or “then,” part of a conditional statement. The conclusion is the result of a hypothesis.

The IF function is pretty simple, and contains the following three arguments.

• Logical Test.
• Value If True.
• Value If False (optional)

An if statement is a programming conditional statement that, if proved true, performs a function or displays information.

There are three ways to prove a statement of form “If A, then B.” They are called direct proof, contra- positive proof and proof by contradiction. DIRECT PROOF. To prove that the statement “If A, then B” is true by means of direct proof, begin by assuming A is true and use this information to deduce that B is true.

More specifically, the contrapositive of the statement “if A, then B” is “if not B, then not A.” A statement and its contrapositive are logically equivalent, in the sense that if the statement is true, then its contrapositive is true and vice versa.

conditional statement

There are many different ways to go about proving something, we’ll discuss 3 methods: direct proof, proof by contradiction, proof by induction. We’ll talk about what each of these proofs are, when and how they’re used. Before diving in, we’ll need to explain some terminology.

A flow chart proof is a concept map that shows the statements and reasons needed for a proof in a structure that helps to indicate the logical order. Statements, written in the logical order, are placed in the boxes.

The most common form of explicit proof in highschool geometry is a two column proof consists of five parts: the given, the proposition, the statement column, the reason column, and the diagram (if one is given).

corresponding parts of congruent triangles are congruent

CPCTC is an acronym for “corresponding parts of congruent triangles are congruent’. When two or more triangles are congruent then their corresponding sides and angles are congruent.

Four shortcuts allow students to know two triangles must be congruent: SSS, SAS, ASA, and AAS. Knowing only angle-angle-angle (AAA) does not work because it can produce similar but not congruent triangles.

The shape of quadrilateral ABCD changes as the moving platform swings around, but its side lengths do not change. Both pairs of opposite sides are congruent, so ABCD is a parallelogram by the Parallelogram Opposite Sides Converse. By the definition of a parallelogram, — AB — DC .