UNIT: CATAPULT

ACT-Based Reading: Evaluating Scientific Articles on Projectile Motion

OBJECTIVE:

Students analyze and summarize scientific explanations of projectile physics.

Materials Needed:

Science journal articles on motion

Highlighters

Student Directions:

Goal:
You will analyze and summarize scientific explanations about how projectiles move through the air, focusing on concepts related to motion and launch angles.

Step 1: Choose and Read an Article

Select one of the science journal articles provided on projectile motion.

Read the article carefully, paying close attention to any scientific terms or examples related to how objects move when launched through the air.

Step 2: Highlight Key Concepts

As you read, use a highlighter to mark:

Definitions of key terms (e.g., velocity, trajectory, angle of launch, air resistance).

Important data or results from experiments.

Any mention of variables that affect how a projectile travels (e.g., speed, angle, weight).

Step 3: Identify Main Ideas and Supporting Details

On a separate sheet or in your science notebook, write:

The main idea of the article in 1–2 sentences.

At least 3 supporting details or facts that help explain the main idea.

Any interesting or surprising findings the article mentions.

Step 4: Small Group Discussion

With a group of 3–4 classmates, discuss the following question:

"How do different launch angles affect the flight path and distance of a projectile?"

Take turns sharing what your article said about launch angles.

Together, come up with a summary explanation you all agree on.

ACT-STYLE QUESTION:

Based on the article, which of the following factors has the greatest impact on projectile range?

Air resistance

Initial velocity

Surface texture of the projectile

Color of the projectile