Flashcards on Science

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What is photosynthesis?

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy, producing oxygen and glucose as byproducts.

What is the law of conservation of energy?

The law of conservation of energy states that energy cannot be created or destroyed, but it can only be transferred or transformed from one form to another.

What are the three states of matter?

The three states of matter are solid, liquid, and gas.

What is the structure and function of DNA?

DNA (deoxyribonucleic acid) is a double-stranded molecule that contains the genetic information of living organisms. It carries the instructions for the development, functioning, growth, and reproduction of cells.

What is the difference between an acid and a base?

Acids are substances that release hydrogen ions (H+) in solution, while bases are substances that release hydroxide ions (OH-) in solution. Acids have a pH below 7, while bases have a pH above 7.

What is Newton's first law of motion?

Newton's first law of motion, also known as the law of inertia, states that an object at rest will stay at rest, and an object in motion will stay in motion with the same speed and direction, unless acted upon by an external force.

What is the process of cell division called?

The process of cell division is called mitosis.

What is the difference between prokaryotic and eukaryotic cells?

Prokaryotic cells are simple cells that do not have a nucleus or membrane-bound organelles, while eukaryotic cells are more complex cells that have a nucleus and membrane-bound organelles.

What is the greenhouse effect?

The greenhouse effect is the process by which certain gases in the Earth's atmosphere trap heat from the sun, causing the Earth's temperature to rise.

What is the function of the respiratory system?

The respiratory system is responsible for the exchange of oxygen and carbon dioxide between the body and the environment. It includes organs such as the lungs, trachea, and bronchi.

What is the pH scale used to measure?

The pH scale is used to measure the acidity or alkalinity of a substance. It ranges from 0 to 14, with 7 being neutral, values below 7 being acidic, and values above 7 being alkaline (basic).

What is the process of photosynthesis?

The process of photosynthesis involves capturing light energy from the sun and converting it into chemical energy in the form of glucose. Oxygen is released as a byproduct.

What are the properties of acids?

Acids have a sour taste, turn blue litmus paper red, and have a pH below 7. They can also react with metals to produce hydrogen gas.

What is the function of the circulatory system?

The circulatory system is responsible for transporting oxygen, nutrients, hormones, and waste products throughout the body. It consists of the heart, blood vessels, and blood.

What is the process of cellular respiration?

Cellular respiration is the process by which cells break down glucose and other organic molecules to produce energy in the form of ATP (adenosine triphosphate). It involves the consumption of oxygen and the production of carbon dioxide and water as byproducts.

What is photosynthesis?

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy, producing oxygen and glucose as byproducts.

What is the law of conservation of energy?

The law of conservation of energy states that energy cannot be created or destroyed, but it can only be transferred or transformed from one form to another.

What are the three states of matter?

The three states of matter are solid, liquid, and gas.

What is the structure and function of DNA?

DNA (deoxyribonucleic acid) is a double-stranded molecule that contains the genetic information of living organisms. It carries the instructions for the development, functioning, growth, and reproduction of cells.

What is the difference between an acid and a base?

Acids are substances that release hydrogen ions (H+) in solution, while bases are substances that release hydroxide ions (OH-) in solution. Acids have a pH below 7, while bases have a pH above 7.

What is Newton's first law of motion?

Newton's first law of motion, also known as the law of inertia, states that an object at rest will stay at rest, and an object in motion will stay in motion with the same speed and direction, unless acted upon by an external force.

What is the process of cell division called?

The process of cell division is called mitosis.

What is the difference between prokaryotic and eukaryotic cells?

Prokaryotic cells are simple cells that do not have a nucleus or membrane-bound organelles, while eukaryotic cells are more complex cells that have a nucleus and membrane-bound organelles.

What is the greenhouse effect?

The greenhouse effect is the process by which certain gases in the Earth's atmosphere trap heat from the sun, causing the Earth's temperature to rise.

What is the function of the respiratory system?

The respiratory system is responsible for the exchange of oxygen and carbon dioxide between the body and the environment. It includes organs such as the lungs, trachea, and bronchi.

What is the pH scale used to measure?

The pH scale is used to measure the acidity or alkalinity of a substance. It ranges from 0 to 14, with 7 being neutral, values below 7 being acidic, and values above 7 being alkaline (basic).

What is the process of photosynthesis?

The process of photosynthesis involves capturing light energy from the sun and converting it into chemical energy in the form of glucose. Oxygen is released as a byproduct.

What are the properties of acids?

Acids have a sour taste, turn blue litmus paper red, and have a pH below 7. They can also react with metals to produce hydrogen gas.

What is the function of the circulatory system?

The circulatory system is responsible for transporting oxygen, nutrients, hormones, and waste products throughout the body. It consists of the heart, blood vessels, and blood.

What is the process of cellular respiration?

Cellular respiration is the process by which cells break down glucose and other organic molecules to produce energy in the form of ATP (adenosine triphosphate). It involves the consumption of oxygen and the production of carbon dioxide and water as byproducts.

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