SC-07-4: Unifying Concepts

SC-07-4.6.4: Students will describe or represent the flow of energy in ecosystems, using data to draw conclusions about the role of organisms in an ecosystem.

SC-07-4.6.4.a: For most ecosystems, the major source of energy is sunlight. Energy entering ecosystems as sunlight is transferred by producers into chemical energy through photosynthesis. That energy then passes from organism in food webs.

Cell Energy Cycle
Cell Energy Cycle

SC-07-4.7.1: Students will compare abiotic and biotic factors in an ecosystem in order to explain consequences of change in one or more factors.

SC-07-4.7.1.a: The number of organisms an ecosystem can support depends on the resources available and abiotic factors (e.g., quantity of light and water, range of temperatures, soil composition). Given adequate biotic and abiotic resources and no diseases or predators, populations (including humans) increase at rapid rates. Lack of resources and other factors, such as predation and climate, limit the growth of populations in specific niches in the ecosystem.

Food Chain
Forest Ecosystem
Prairie Ecosystem
Rabbit Population by Season
Food Chain
Forest Ecosystem
Prairie Ecosystem
Rabbit Population by Season

SC-07-1: Physical Science

SC-07-1.1: Structure and Transformation of Matter

SC-07-1.1.1: Students will:

SC-07-1.1.1.a: classify substances according to their chemical/reactive properties;

Mineral Identification

SC-07-1.1.1.b: infer real life applications for substances based on chemical/reactive properties.

SC-07-1.1.1.b.1: In chemical reactions, the total mass is conserved. Substances are often classified into groups if they react in similar ways. The patterns, which allow classification, can be used to infer or understand real life applications for those substances.

Chemical Changes
Chemical Equations
Mineral Identification

SC-07-2: Earth/Space Science

SC-07-2.3.3: Students will describe the concept of gravity and the effect of gravitational force between the sun, moon and Earth.

SC-07-2.3.3.a: The gravitational pull of the Sun and moon on Earth?s oceans as the major cause of tides can be understood from generalizations based on evidence.

Tides

SC-07-3: Biological Science

SC-07-3.4.1: Students will:

SC-07-3.4.1.a: describe the role of genes/chromosomes in the passing of information from one generation to another (heredity);

Human Karyotyping
Mouse Genetics (One Trait)
Mouse Genetics (Two Traits)

SC-07-3.4.1.b: compare inherited and learned traits.

SC-07-3.4.1.b.1: Every organism requires a set of instructions for specifying its traits. This information is contained in genes located in the chromosomes of each cell that can be illustrated through the use of models. Heredity is the passage of these instructions from one generation to another and should be distinguished from learned traits.

Inheritance

SC-07-3.4.2: Students will describe and compare sexual and asexual reproduction.

SC-07-3.4.2.a: Reproduction is a characteristic of all living systems and is essential to the continuation of every species as evidenced through observable patterns. A distinction should be made between organisms that reproduce asexually and those that reproduce sexually. In species that reproduce sexually, including humans and plants, male and female sex cells carrying genetic information unite to begin the development of a new individual.

Pollination: Flower to Fruit

SC-07-4.6.2: Students will:

SC-07-4.6.2.a: describe the transfer and/or transformations of energy which occur in examples that involve several different forms of energy (e.g., heat, electrical, light, motion of objects and chemical).

Energy Conversion in a System
Heat Absorption
Inclined Plane - Sliding Objects
Radiation

SC-07-4.6.2.b: Explain, qualitatively or quantitatively, that heat lost by hot object equals the heat gained by cold object.

SC-07-4.6.2.b.1: The transfer and transformation of energy can be examined in a variety of real life examples. Models are an appropriate way to convey the abstract/invisible transfer of energy in a system.

2D Collisions

SC-07-4.6.2.b.2: Heat energy is the disorderly motion of molecules. Heat can be transferred through materials by the collisions of atoms or across space by radiation. If the material is fluid, currents will be set up in it that aid the transfer of heat. To change something's speed, to bend or stretch things, to heat or cool them, to push things together, to expand or contract them or tear them apart all require transfers (and some transformations) of energy. Heat lost by hot object equals the heat gained by cold object. This is an energy conservation statement. Whenever hot and cold objects are put in contact, heat energy always transfers from the hot object to the cold object and this continues until all the mass is at the same temperature. Students should understand that heat produced by burning comes from the release of chemical energy of the substance.

Conduction and Convection
Energy Conversion in a System
Heat Absorption
Heat Transfer by Conduction
Herschel Experiment
Inclined Plane - Sliding Objects
Radiation
Temperature and Particle Motion

SC-07-4.6.3: Students will understand that waves are one way that energy is transferred. Types of waves include sound, light, earthquake, ocean and electromagnetic.

Earthquakes 1 - Recording Station
Heat Absorption
Longitudinal Waves
Radiation