Gravitational Pull
Gravitational pull is the force of attraction that objects with mass exert on each other. It is the force that keeps planets in orbit around the sun and the moon in orbit around the Earth. The strength of the gravitational pull depends on the mass of the objects and the distance between them.
Key Concepts
- Gravity: The force of attraction between objects with mass.
- Mass: The amount of matter in an object.
- Orbit: The path that an object takes as it moves around another object in space.
- Distance: The space between two objects.
Study Guide
- What is gravitational pull?
- What factors determine the strength of gravitational pull?
- Give an example of gravitational pull in our solar system.
- How does gravitational pull affect objects on Earth?
Answer: Gravitational pull is the force of attraction that objects with mass exert on each other.
Answer: The strength of the gravitational pull depends on the mass of the objects and the distance between them.
Answer: The gravitational pull of the sun keeps the planets in orbit around it.
Answer: Gravitational pull keeps us grounded on Earth and also affects the tides in the oceans.
◂Science Worksheets and Study Guides Third Grade. Relationships among living things
Study Guide
Relationships among living things 
Activity Lesson
Relationships Among Living Things Worksheet/Answer key
Relationships among living things Worksheet/Answer key
Relationships among living things Worksheet/Answer key
Relationships among living things Worksheet/Answer key
Relationships among living things Vocabulary/Answer key
Relationships among living things Vocabulary/Answer key
Relationships among living things
Activity LessonWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
LIFE SCIENCE
From Molecules to Organisms: Structures and Processes
Create representations to explain the unique and diverse life cycles of organisms other than humans (e.g., flowering plants, frogs, butterflies), including commonalities such as birth, growth, reproduction, and death.
Unity and Diversity
Construct an argument from evidence to explain the likelihood of an organism’s ability to survive when compared to the resources in a certain habitat (e.g., freshwater organisms survive well, less well, or not at all in saltwater; desert organisms survive well, less well, or not at all in woodlands).
Create models that illustrate how organisms and their habitats make up a system in which the parts depend on each other.