American Samoa College and Career Ready Standards: Grade 2
Skills available for American Samoa second-grade science standards
Standard
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1-3
Physical Science
1 Students inquire about states, properties, and transformations of matter.
2.1.1 Identify ways to change matter.
2.1.1 Identify ways to change matter.
2.1.2 Determine that objects made from different materials have different properties.
2.1.2 Determine that objects made from different materials have different properties.
2.1.3 Recognize that matter can be a solid or liquid, and can change states.
Classify and identify solids and liquids
Change-of-state diagrams
2.1.3 Recognize that matter can be a solid or liquid, and can change states.
Classify and identify solids and liquids
Change-of-state diagrams
2 Students explain forces, motions, and their interactions.
2.2.1 Examine what happens when forces have different strengths.
2.2.1 Examine what happens when forces have different strengths.
2.2.2 Identify the effects of magnets on various materials, including each other.
2.2.2 Identify the effects of magnets on various materials, including each other.
3 Students investigate energy and how it is transferred and transformed within and between systems.
2.3.1 Identify various forms of energy.
2.3.1 Identify various forms of energy.
4-6
Earth and Space Science
4 Students analyze the interconnected systems that include the planet Earth, our Solar System, our Galaxy, and the Universe.
2.4.1 Observe and record at what times of the day the outdoor shadows are shortest and longest, and discuss how and why they change.
2.4.1 Observe and record at what times of the day the outdoor shadows are shortest and longest, and discuss how and why they change.
5 Students explain planet Earth as a complex and dynamic system of rock, water, air, and living things.
2.5.1 Describe structural features of planet Earth.
2.5.1 Describe structural features of planet Earth.
2.5.2 Explore rocks and soil.
2.5.2 Explore rocks and soil.
6 Students assess the interrelated cycles and forces that shape Earth's surface, including human interaction with Earth.
2.6.1 Explore how water plays an essential role in Earth systems, including shaping landforms.
2.6.1 Explore how water plays an essential role in Earth systems, including shaping landforms.
2.6.2 Describe weather in measurable quantities, such as temperature and precipitation.
2.6.2 Describe weather in measurable quantities, such as temperature and precipitation.
7-9
Life Science
7 Students examine organisms' structures and functions for life processes, including growth and reproduction.
2.7.1 Investigate the life cycle of plants.
2.7.1 Investigate the life cycle of plants.
2.7.2 Investigate the life cycles of animals.
2.7.2 Investigate the life cycles of animals.
2.7.3 Explain how structures of organisms may change during their lives.
2.7.3 Explain how structures of organisms may change during their lives.
8 Students inquire how organisms and populations of organisms obtain resources from their environment.
2.8.1 Recognize how characteristics of organisms match to their habitats.
Where organisms live
Pollinators
Seed dispersers
2.8.1 Recognize how characteristics of organisms match to their habitats.
Where organisms live
Pollinators
Seed dispersers
2.8.2 Investigate how forest and lagoon ecosystems in American Samoa support life, including human life, by providing food, fresh water, and air.
2.8.2 Investigate how forest and lagoon ecosystems in American Samoa support life, including human life, by providing food, fresh water, and air.
2.8.3 Explore how ecosystems change over time as a result of natural causes like storms, floods, earthquakes, tsunamis, and fires, and explain which changes are beneficial for the plants and animals, which are harmful, and which have no effect.
2.8.3 Explore how ecosystems change over time as a result of natural causes like storms, floods, earthquakes, tsunamis, and fires, and explain which changes are beneficial for the plants and animals, which are harmful, and which have no effect.
9 Students explore how biological evolution explains unity and diversity of species.
2.9.1 Explore the variations among the same kinds of plants and animals.
2.9.1 Explore the variations among the same kinds of plants and animals.
2.9.2 Explain how an offspring of a plant or animal closely resembles its parents.
2.9.2 Explain how an offspring of a plant or animal closely resembles its parents.