Day 1: Introduction to Gravity in Space

Objective

I can explain what gravity is and how it affects objects in space.

Vocabulary

• Gravity
• Force
• Mass
• Orbit
• Galaxy

Standards

• Next Generation Science Standards (NGSS) MS-ESS1-2: Develop and use a model to describe the role of gravity in the motions within galaxies and the solar system.

Success Criteria:

• I can define gravity and mass.
• I can describe how gravity acts as a force between objects.

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Review of Previous Lesson (if applicable)

• Quick 3-minute review of what force is (push and pull) and mass.

Drill (5 Multiple Choice Questions)

1. Gravity pulls objects ________.
   a) Away from each other
   b) Toward each other
   c) Sideways
   d) It does not pull objects
2. Which object has more gravity?
   a) Small rock
   b) Large planet
   c) Feather
   d) Paper
3. Orbit means:
   a) A straight path
   b) Path around a planet or star
   c) To fall down
   d) To spin in place
4. Gravity is a type of _________.
   a) Energy
   b) Force
   c) Light
   d) Sound
5. Mass is:
   a) How heavy an object is
   b) The amount of matter in an object
   c) The speed of an object
   d) None of the above

Motivation (5 Minutes)

Show a short video or animation demonstrating gravity on Earth and in space (e.g., astronauts floating in space, objects falling).

Activity (7 Minutes)

Gravity Model Building: Each student creates a simple model with a ball (mass) and fabric stretched over a hoop to simulate a gravity well. Students place smaller balls on the fabric and observe how they roll towards the larger ball.

Discussion (3 Minutes)

• How does the model help us understand gravity?
• What happens when the mass increases?

Concept Formation (3 Minutes)

Summarize how gravity is a force that pulls objects towards each other and is responsible for orbits in space.

Real-Life Application

Discuss how gravity keeps the Moon orbiting Earth and Earth orbiting the Sun.

Evaluation (5 Multiple Choice Questions)

1. Gravity causes objects to:
   a) Stay still
   b) Attract each other
   c) Move away from each other
   d) Disappear
2. A planet’s gravity depends on its _______.
   a) Color
   b) Size and mass
   c) Temperature
   d) Distance from the Sun
3. The force of gravity is:
   a) Weaker in space
   b) Stronger in space
   c) The same everywhere
   d) Not present in space
4. Objects in orbit are:
   a) Falling around a planet or star
   b) Moving away from planets
   c) Staying still
   d) Crashing into planets
5. The Earth orbits the ______.
   a) Moon
   b) Sun
   c) Mars
   d) Galaxy

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Differentiation Strategies

• For diverse learners:
  Provide visual aids and hands-on models to make abstract concepts concrete. Use simplified vocabulary for ELL students.
• For students needing challenge:
  Encourage independent research on how gravity influences galaxy formation.
• For students with IEPs:
  Provide guided notes and one-on-one support during activities.

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Day 2: Gravity and the Solar System

Objective

I can describe how gravity controls the movement of planets and moons in the solar system.

Vocabulary

• Solar system
• Planet
• Moon
• Sun
• Gravitational pull

Standards

NGSS MS-ESS1-2: Develop and use a model to describe the role of gravity in the motions within galaxies and the solar system.

Success Criteria:

• I can explain the role of the Sun’s gravity in keeping planets in orbit.
• I can identify the relationship between gravitational pull and orbital speed.

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Review of Previous Lesson (3 Minutes)

Quick recap: gravity pulls objects towards each other, modeled by the fabric and balls.

Drill (5 Multiple Choice Questions)

1. What keeps the planets orbiting the Sun?
   a) Wind
   b) Gravity
   c) Electricity
   d) Magnetism
2. The Moon orbits the ______.
   a) Sun
   b) Earth
   c) Mars
   d) Jupiter
3. Larger objects have _______ gravitational pull.
   a) Less
   b) More
   c) The same
   d) No
4. Planets closer to the Sun move _______ than those farther away.
   a) Slower
   b) Faster
   c) The same speed
   d) They don’t move
5. Gravity causes moons to:
   a) Fly away from planets
   b) Orbit planets
   c) Stay still
   d) Change color

Motivation (3 Minutes)

Engage students by asking: “Why don’t planets crash into the Sun?”

Activity (7 Minutes)

Solar System Orbit Dance: Assign students to be planets and the Sun. Use string to represent gravitational pull and have planets 'orbit' the Sun, experiencing different speeds.

Discussion (3 Minutes)

• What did you notice about how the planets moved?
• How does distance from the Sun affect motion?

Concept Formation (2 Minutes)

Gravity from the Sun pulls planets inward while their motion tries to move them forward, creating an orbit.

Real-Life Application

Discuss how satellites must orbit Earth and use gravity to stay in space.

Evaluation (5 Multiple Choice Questions)

1. What two forces keep a planet in orbit?
   a) Gravity and motion
   b) Magnetism and wind
   c) Electricity and sound
   d) Heat and light
2. Which has stronger gravity?
   a) Sun
   b) Earth
   c) Moon
   d) Mars
3. What happens to Earth's orbit if the Sun's gravity decreased?
   a) Earth would move away
   b) Earth would crash into Sun
   c) Earth would stay the same
   d) Earth would spin faster
4. Moons orbit their planets because of:
   a) Gravity
   b) Wind
   c) Light
   d) Heat
5. Planets closer to the Sun orbit:
   a) Slower
   b) Faster
   c) Not at all
   d) Backwards

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Differentiation Strategies

• Use gestures and movement for kinesthetic learners during Orbit Dance.
• Provide sentence frames for ELL students about orbits and gravity.
• Extend lesson with planet fact cards for advanced students.

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Day 3: Gravity in Galaxies

Objective

I can develop a model to show how gravity affects the motions within galaxies.

Vocabulary

• Galaxy
• Stars
• Black hole
• Gravity well
• Rotation

Standards

NGSS MS-ESS1-2

Success Criteria:

• I can explain how gravity holds galaxies together.
• I can describe how stars move in galaxies due to gravity.

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Review of Previous Lesson (3 Minutes)

Brief recall on how gravity keeps planets in orbit around the Sun.

Drill (5 Multiple Choice Questions)

1. Galaxies are made of:
   a) Stars and planets
   b) Clouds and air
   c) Rocks and sand
   d) Light and energy
2. Gravity in galaxies:
   a) Pushes stars away
   b) Holds stars together
   c) Has no effect
   d) Only affects planets
3. Black holes have:
   a) Weak gravity
   b) Very strong gravity
   c) No gravity
   d) Gravity only at night
4. Stars orbit the center of their galaxy because of:
   a) Wind
   b) Gravity
   c) Light
   d) Heat
5. The center of some galaxies contains:
   a) Black holes
   b) Water
   c) Stars twinkling
   d) Planets

Motivation (5 Minutes)

Show pictures of different galaxies and a brief explanation of their structure.

Activity (7 Minutes)

Galaxy Spin Simulation: Using a large spinning disk or rotating platform, place stickers or balls representing stars. Spin the platform slowly to represent rotation caused by gravity.

Discussion (3 Minutes)

• How does gravity affect stars in the galaxy?
• What might happen if there were no gravity?

Concept Formation (2 Minutes)

Gravity acts over large distances to keep galaxies together by pulling stars toward the center.

Real-Life Application

Discuss how gravity affects the Milky Way Galaxy and our solar system within it.

Evaluation (5 Multiple Choice Questions)

1. What pulls stars toward the center of a galaxy?
   a) Sound
   b) Gravity
   c) Air pressure
   d) Light
2. A black hole’s gravity is:
   a) Stronger than a star’s
   b) Weaker than a star’s
   c) The same as a planet’s
   d) Not present
3. Without gravity, galaxies would:
   a) Fall apart
   b) Become brighter
   c) Spin faster
   d) Grow bigger
4. Galaxy rotation is caused by:
   a) Gravity
   b) Magnetic forces
   c) Wind
   d) Earth’s gravity
5. Stars in galaxies orbit:
   a) Each other only
   b) The galaxy center
   c) Randomly
   d) Not at all

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Differentiation Strategies

• Visual and tactile learners benefit from the spinning disk simulation.
• Use analogies of sports teams or groups for ELL students to understand “groups held together.”
• Offer graphic organizers to show galaxy structure for students who need organization support.

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Day 4: Modeling Gravity's Effects

Objective

I can create and explain a model demonstrating gravity’s effects within the solar system and galaxies.

Vocabulary

• Model
• Simulation
• Gravitational force
• Motion
• Scale

Standards

NGSS MS-ESS1-2

Success Criteria:

• I can build a physical or digital model to show gravity’s role.
• I can explain how my model represents real space motions.

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Review of Previous Lesson (3 Minutes)

Discuss how gravity keeps stars orbiting in galaxies.

Drill (5 Multiple Choice Questions)

1. In a model, the bigger mass:
   a) Has weaker gravity
   b) Has stronger gravity
   c) Moves faster
   d) Cannot move
2. Models help us:
   a) Understand real-world phenomena
   b) Make art
   c) Relax
   d) Play games
3. Scale in models means:
   a) Making things bigger or smaller proportionally
   b) Making things the same size
   c) Using a ruler
   d) Painting
4. Gravitational force depends on:
   a) Color and shape
   b) Mass and distance
   c) Temperature
   d) Noise
5. In models, motion can show:
   a) How objects interact with gravity
   b) How they change colors
   c) How they sound
   d) How they smell

Motivation (3 Minutes)

Show examples of orbit animations and models of the solar system and galaxies.

Activity (10 Minutes)

Model Creation: Students pick between making a paper solar system or digital animation/model to show gravity effects. Work in pairs to plan and build.

Discussion (2 Minutes)

• What did your model show about gravity?
• How did you decide what to include?

Concept Formation (2 Minutes)

Models simplify and visualize space gravity’s role to help us understand complex motions.

Real-Life Application

Discuss how NASA uses models to study spacecraft trajectories.

Evaluation (5 Multiple Choice Questions)

1. NASA uses models to:
   a) Plan missions
   b) Cook food
   c) Play video games
   d) Make clothes
2. Models can:
   a) Make learning easier
   b) Confuse us
   c) Be real planets
   d) Replace real experiments
3. Gravity affects:
   a) Planets and stars
   b) Only small objects
   c) Only things on Earth
   d) Only water
4. Simulation means:
   a) Copying something to learn about it
   b) Walking
   c) Singing
   d) Sleeping
5. What helps show gravity in models?
   a) Movement and force demonstration
   b) Color only
   c) Sound effects
   d) Food

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Differentiation Strategies

• Partner students for peer support during model-building.
• Provide templates and digital tool links for students needing tech help.
• Offer advanced students the option to add variables like velocity.

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Day 5: Review and Application

Objective

I can demonstrate understanding of gravity’s role in motions within galaxies and the solar system.

Vocabulary

• Review all listed vocabulary
• Motion
• Interaction

Standards

NGSS MS-ESS1-2

Success Criteria:

• I can answer questions about gravity in space.
• I can explain and apply gravity concepts in real-life.

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Review of Previous Lesson (3 Minutes)

Students share highlights of their models and explain gravity’s role.

Drill (5 Multiple Choice Questions)

1. Gravity causes planets to:
   a) Stay in orbit
   b) Fall off
   c) Stop moving
   d) Explode
2. A galaxy’s stars are held together by:
   a) Gravity
   b) Air
   c) Heat
   d) Wind
3. The Sun’s gravity affects:
   a) Earth and other planets
   b) Only Earth
   c) Only moons
   d) Only stars
4. Without gravity, solar system objects would:
   a) Drift away
   b) Crash into each other
   c) Stay still
   d) Glow brighter
5. Gravity’s strength depends mostly on:
   a) Mass and distance
   b) Color and temperature
   c) Sound and light
   d) Speed

Motivation (2 Minutes)

Pose the question: “What would happen if gravity stopped?”

Activity (8 Minutes)

Gravity Scenario Discussion: Students work in small groups to answer “What If” scenarios about changes in gravity’s role in galaxies or the solar system.

Discussion (5 Minutes)

Groups share answers; teacher guides linking ideas to core concepts.

Concept Formation (2 Minutes)

Reinforce gravity as the invisible force governing cosmic motion and structure.

Real-Life Application

Discuss astronauts, satellites, and everyday examples affected by gravity.

Evaluation (5 Multiple Choice Questions)

1. Gravity is important because it:
   a) Keeps planets in orbit
   b) Makes noise
   c) Makes stars shine
   d) Cools planets
2. Orbital motion happens because of gravity and:
   a) Forward motion
   b) Light speed
   c) Heat
   d) Air resistance
3. How do black holes affect gravity?
   a) Increase it dramatically
   b) Decrease it
   c) No effect
   d) Reverse it
4. Gravitational pull between two objects increases if:
   a) They move closer
   b) They move apart
   c) They change color
   d) They stop moving
5. Which object has the least gravitational pull?
   a) Small rock
   b) Sun
   c) Earth
   d) Black hole

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Differentiation Strategies

• Provide sentence starters for “What If” questions for ELL and struggling writers.
• Challenge advanced students to explain scenarios in writing.
• Use visuals and graphic organizers to support discussion.

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Summary

This 5-day sequence aligns to NGSS MS-ESS1-2, addresses vocabulary use, formative and summative assessments via multiple choice drills, engages students through hands-on models, movement, and collaborative discussion, and includes differentiation for diverse learners. The integration of "I can" goals and success criteria supports self-assessment and clear learning targets.