Units And Frames of Reference

Paul Nathan Negrean

Aug 21, 2023 — 1 min read

Tape measure

Units are a measurement used to describe positions, speeds, and masses of objects. In the scientific world, scientists all use the same types of units (for example, meters and kilograms) to be able to communicate accurate data to each other without any mix-ups.

Frames of Reference is a fancy name for points of view (POV). If one person has a different POV than another, they will see things differently. One example of different POV's is that of an astronaut in space seeing the earth move, while a person on earth will not notice the rotation of the planet.

Ecosystems and Biodiversity

Ecosystems Ecosystems are dynamic, which means that they change over time, either for the better or worse. These systems can often times experience disruptions in either the living or non-living parts of the system. Every change can affect the populations of the system. * A change can impact the populations negatively,

Matter and Energy In Ecosystems

Photosynthesis in Ecosystems Energy from the sun is converted into chemical energy by plants through the process of photosynthesis. Plants take water from the ground, C02 from the air, and energy from the sun's rays to preform photosynthesis. After preforming photosynthesis, the plants release Oxygen, which is then

The Arctic Food Web

The Food Web In the image below, I have drawn a food web for the Arctic. The producers are eaten by the primary consumers (portrayed by a green line). The primary consumers' are food for the secondary consumers (shown by red arrows). Some secondary consumers eat each other (shown

Two Greek Myths

Some Greek myths may be difficult to understand. I'll try to make two of them clear so that you may fully understand their meanings. The Myth of Persephone & Demeter Demeter, the “goddess” of the harvest, had a daughter named Persephone, whom she loved very much. One day,

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Ecosystems and Biodiversity

Matter and Energy In Ecosystems

The Arctic Food Web

Two Greek Myths