Science · 6th Grade

Active learning ideas

A Tour of the Solar System

Take your students on an interplanetary journey to explore the wonders of our solar system. This topic moves beyond memorization to build a conceptual model of our cosmic home.

• Common Core State Standards
• NGSS: MS-ESS1 - Earth's Place in the Universe

• 30–90 min
• Pairs → Whole Class
• 3 activities

Activity 01

• Jigsaw
• 45 min · Individual

Pocket Solar System

Students create a scale model of the distances between planets using a long strip of register tape. They make a series of folds to represent the vast and unequal spacing of the planets' orbits, challenging their perception of a uniformly spaced system.

Compare the characteristics of the inner, rocky planets with the outer, gas giant planets.

Facilitation Tip

Emphasize that this is a model of distance, not planetary size, to avoid confusion.

What to look for

Use an exit ticket where students must list two characteristics of an inner planet and two of an outer planet to check for understanding of key differences.

• Understand
• Analyze
• Evaluate
• Relationship Skills
• Self-Management

Activity 02

• Jigsaw
• 90 min · Small Groups

Planet Travel Agency

In small groups, students research a specific planet or moon and create a travel brochure or digital presentation to attract tourists. They must include key facts like temperature, gravity, atmospheric conditions, and unique features, creatively highlighting both the attractions and the dangers.

Explain the role of gravity in forming and maintaining the structure of the solar system.

Facilitation Tip

Provide a research guide or rubric to ensure students gather the required scientific information for their chosen destination.

What to look for

Students create a scaled model or a digital presentation of the solar system, correctly labeling all planets and other key features like the asteroid belt, and providing a brief explanation of gravity's role.

• Understand
• Analyze
• Evaluate
• Relationship Skills
• Self-Management

Activity 03

• Jigsaw
• 30 min · Whole Class

Gravity Well Demonstration

Stretch a large piece of spandex or fabric over a hoop to create a 'gravity well.' Students roll marbles of different masses across the fabric to visualize how larger objects (like the Sun) warp spacetime and cause smaller objects (like planets) to orbit.

Identify the key components of our solar system beyond the planets, such as asteroids and comets.

Facilitation Tip

Use a heavy ball bearing in the center to represent the Sun and smaller ones for planets to best demonstrate the concept.

What to look for

Provide students with a checklist of the learning objectives and key vocabulary terms, allowing them to rate their confidence level (e.g., 'I can teach this,' 'I understand,' 'I need help').

• Understand
• Analyze
• Evaluate
• Relationship Skills
• Self-Management

A few notes on teaching this unit

Begin by tapping into students' prior knowledge and excitement about space. Use physical models and visual aids whenever possible to help students grasp the abstract concepts of scale and gravity. Encourage group work and research projects to allow students to take ownership of their learning and dive deeper into a celestial body that interests them.

Upon completion, students will be able to compare planetary characteristics and explain how the fundamental force of gravity holds the entire system together.

---

Watch Out for These Misconceptions

• The asteroid belt is a crowded, dense field of rocks that is difficult to fly through.

  The asteroid belt is vast, and the asteroids within it are very far apart. Spacecraft have flown through it many times without any issue, as the average distance between large asteroids is hundreds of thousands of miles.

• Planets, moons, and stars are all the same type of object.

  Stars, like our Sun, produce their own light through nuclear fusion. Planets and moons do not produce their own light; they are visible because they reflect the light from a star they orbit.

• Gravity is a force that only exists on Earth, or it 'turns off' in space.

  Gravity is a universal force of attraction between any two objects with mass. Astronauts on the International Space Station appear weightless because they are in a constant state of freefall, orbiting Earth, not because there is no gravity.

• The orbits of planets are perfect circles.

  Planetary orbits are not perfect circles but are slightly oval-shaped paths called ellipses. The Sun is not at the exact center but at one of the two focal points of the ellipse.

---

Methods used in this brief

• Jigsaw