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Atomic mass of electron is: ~ 1/2000 amu.

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Atomic mass of electron is: ~ 1/2000 amu.

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Atomic number means number of protons in an element.

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Atomic number means number of protons in an element.

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In a periodic table, elements in the same group (vertical column) have same number of valence electrons.

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In a periodic table, elements in the same group (vertical column) have same number of valence electrons.

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In a human digestive system, changing carbohydrates into simple sugar is a chemical change.

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In a human digestive system, changing carbohydrates into simple sugar is a chemical change.

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Exothermic chemical reactions produce heat.

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Exothermic chemical reactions produce heat.

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An element that is dull, brittle, and a poor conductor is classified as a nonmetal.

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An element that is dull, brittle, and a poor conductor is classified as a nonmetal.

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Force is measured in Newtons.

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Force is measured in Newtons.

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Work = Force x distance.

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Work = Force x distance.

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Change in distance over time is speed.

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Change in distance over time is speed.

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Speed in a given direction is velocity.

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Speed in a given direction is velocity.

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Acceleration is change in velocity divided by change in time.

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Acceleration is change in velocity divided by change in time.

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Energy of position (stored energy) is called Potential energy.

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Energy of position (stored energy) is called Potential energy.

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Earth is tilted at an angle of ~23.5°.

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Earth is tilted at an angle of ~23.5°.

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Earth’s revolution around the Sun takes

365 ¼ days.

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Earth’s revolution around the Sun takes

365 ¼ days.

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Smallest difference between low and high tide is neap tide.

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Smallest difference between low and high tide is neap tide.

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Large cloud of gas and dust that may absorb starlight or reflect starlight is called Nebula.

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Large cloud of gas and dust that may absorb starlight or reflect starlight is called Nebula.

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Full range of radiation at different wavelengths that is emitted by an object is Electromagnetic spectrum.

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Full range of radiation at different wavelengths that is emitted by an object is Electromagnetic spectrum.

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Elements emit different wavelengths of light.

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Elements emit different wavelengths of light.

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Parasite receives benefits from the organism that it lives with.

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Parasite receives benefits from the organism that it lives with.

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% of short-haired rats will increase

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% of short-haired rats will increase

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Mitochondrion breaks down food to release energy inside a cell.

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Mitochondrion breaks down food to release energy inside a cell.

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Organism that does not make its own food is called heterotrophic.

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Organism that does not make its own food is called heterotrophic.

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Mushrooms, molds, yeast are examples of Fungi.

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Mushrooms, molds, yeast are examples of Fungi.

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Endocrine system regulates functions like growth and development.

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Endocrine system regulates functions like growth and development.

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