Models of Atoms and the Solar System

Models of Atoms and the Solar System Worksheet (Grade 6 Science, TEKS 6.2A)

Show grade 6 students why scientists need models for things that are too small or too big to see. This one-page reading and activity sheet compares a model of an atom with a model of the solar system and explains why neither one is drawn to scale.

What's Inside

• A labeled picture of an atom model (nucleus and electrons) and a desk model of the solar system
• A short reading on what each model shows, how real electrons move in a cloud, and what a scale model is
• Activity 1: A word bank fill-in with nucleus, electrons, scale, and small
• Activity 2: Students read a scale model table, with the Sun as a basketball, and circle answers about distances
• A visual answer key with answers marked in red

How Teachers Use It

Use it in a unit on models, matter, or space, or as a quick check on TEKS 6.2A. The real-world scale model (Earth is a peppercorn 26 meters from a basketball Sun) gives students a memorable picture of scale. The sheet takes about 10 minutes and prints clearly in black and white.

This worksheet is part of the Reading in Science series for grade 6. It supports TEKS 6.2A: identify advantages and limitations of models such as their size, scale, properties, and materials. Pair it with the other 6.2A sheets to build a short unit on scientific models.

Why It Works

Each sheet teaches the key terms in plain words first, then asks students to use only what the page taught. Activities stay at the circle, match, and fill-in level, so students build confidence while the answer key lets teachers check work fast.