Science TEKS – Grade 4

(5)  Matter and Energy

The student knows that matter has measurable physical properties and those properties determine how matter is classified, changed, and used. The student is expected to:

(A)  measure, compare, and contrast physical properties of matter, including size, mass, volume, states (solid, liquid, gas), temperature, magnetism, and the ability to sink or float;

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(B)  predict the changes caused by heating and cooling such as ice becoming liquid water and condensation forming on the outside of a glass of ice water; and

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(C) compare and contrast a variety of mixtures and solutions such as rocks in sand, sand in water, or sugar in water.

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(6)  Force, Motion, and Energy

 The student knows that energy exists in many forms and can be observed in cycles, patterns, and systems. The student is expected to:

(A)  differentiate among forms of energy, including mechanical, sound, electrical, light, and heat/thermal;

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(B) differentiate between conductors and insulators;

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(C) demonstrate that electricity travels in a closed path, creating an electrical circuit, and explore an electromagnetic field; and

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(D) design an experiment to test the effect of force on an object such as a push or a pull, gravity, friction, or magnetism.

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(7)  Earth and Space: Useful Resources

The students know that Earth consists of useful resources and its surface is constantly changing. The student is expected to:

(A)  examine properties of soils, including color and texture, capacity to retain water, and ability to support the growth of plants;

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(B)  observe and identify slow changes to Earth's surface caused by weathering, erosion, and deposition from water, wind, and ice; and

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(C)  identify and classify Earth's renewable resources, including air, plants, water, and animals; and nonrenewable resources, including coal, oil, and natural gas; and the importance of conservation.

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(8)  Earth and Space: Sun, Earth and Moon

The student knows that there are recognizable patterns in the natural world and among the Sun, Earth, and Moon system. The student is expected to:

(A)  measure and record changes in weather and make predictions using weather maps, weather symbols, and a map key;

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(B)  describe and illustrate the continuous movement of water above and on the surface of Earth through the water cycle and explain the role of the Sun as a major source of energy in this process; and

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(C) collect and analyze data to identify sequences and predict patterns of change in shadows, tides, seasons, and the observable appearance of the Moon over time.

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(9)  Organisms and Environments: Relationships and Environment

The student knows and understands that living organisms within an ecosystem interact with one another and with their environment. The student is expected to:

(A)  investigate that most producers need sunlight, water, and carbon dioxide to make their own food, while consumers are dependent on other organisms for food; and

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(B)  describe the flow of energy through food webs, beginning with the Sun, and predict how changes in the ecosystem affect the food web such as a fire in a forest.

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(10)  Organisms and Environments: Survival Structure and Processes

The student knows that organisms undergo similar life processes and have structures that help them survive within their environment. The student is expected to:

(A) explore how adaptations enable organisms to survive in their environment such as comparing birds' beaks and leaves on plants;

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(B) demonstrate that some likenesses between parents and offspring are inherited, passed from generation to generation such as eye color in humans or shapes of leaves in plants. Other likenesses are learned such as table manners or reading a book and seals balancing balls on their noses; and

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(C) explore, illustrate, and compare life cycles in living organisms such as butterflies, beetles, radishes, or lima beans.

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