Science - Lesson 3: Hypothesis, I.V. and D.V.

Unit 1

Lesson #3

Independent Variable

Dependent Variable

Hypothesis

Learning Target

I will be able to identify independent and dependent variables and use them to write a testable hypothesis.

NGSS Standard

Planning and Carrying Out Investigations

Plan an investigation or test a design individually and collaboratively to produce data to serve as the basis for evidence as part of building and revising models, supporting explanations for phenomena, or testing solutions to problems.

Reminders

Contract due
Materials due
Hand in paper towel or tissues etc any day this week.

Part 1:

SEL Warm-Up

(10 min)

Step #1) Take a piece of paper from the basket in the front as you walk in.

Step #2) Fold the paper like the picture to the right.

Step #3) Write your full name (first and last) on the piece of paper.

Part 2:

Turn and Talk

(5 min)

🗣️

Question: Mr. Pinho went to the dentist. It did not go very well. Mr. Pinho's dentist said that his teeth were full of plaque and he has swollen gums. Mr. Pinho SWEARS he brushes his teeth twice a day.

What advice would you give Mr. Pinho? Use the sentence stem below in your response.

IF Mr. Pinho _______________ THEN ______________________.

Part 3:

Stop n' Jot

(4 min)

Congratulations! 🥳 You just made your first hypothesis!

Hypothesis:

Possible explanation to a scientific problem based on previous knowledge.

Used to determine what data to collect. Includes the IV and DV

Often takes the form of an IF______________ THEN ________________ statement.

Part 4:

Turn & Talk

(4 min)

Scenario 2: Ms. Angarola's students have a test tomorrow. She has a hypothesis about how students can get the highest score on their exam.

Her hypothesis is:

IF students jog before their exam, THEN they will get a higher grade.

Turn & Talk:

How could Ms. Angarola test this hypothesis?

Part 5

Variables Video

(5 min)

A hypothesis is made of an INDEPENDENT Variable and DEPENDENT Variable.

They are often called I.V. and D.V. for short.

Let's discover the difference between I.V. and D.V.

As you watch the video, write down in your notebook the difference between Independent and Dependent Variable.

Part 6

Independent Practice

(8 min)

IV DV and Hypothesis