Science — English

What is the term for the force that keeps planets in orbit around the sun?
The force that keeps planets in orbit around the sun is known as gravity. Gravity is a fundamental force of...
Added: 25 Mar 2000
Updated: 25 Nov 2025
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What do we call organisms that can only survive in specific or extreme environments?
Organisms that can only survive in specific or extreme environments are called extremophiles. These unique organisms can thrive in conditions...
Added: 25 Mar 2000
Updated: 11 Nov 2025
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What is the name of the outer layer of the Earth?
The name of the outer layer of the Earth is the crust. The crust is relatively thin compared to the...
Added: 25 Mar 2000
Updated: 16 Nov 2025
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What term is used to describe two or more substances that are combined physically but not chemically?
The term used to describe two or more substances that are combined physically but not chemically is mixture. Mixtures can...
Added: 25 Mar 2000
Updated: 06 Nov 2025
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What do we call the natural process through which nutrients are cycled in an ecosystem?
The natural process through which nutrients are cycled in an ecosystem is called nutrient cycling. This involves the transfer and...
Added: 25 Mar 2000
Updated: 09 Nov 2025
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What is the opposite of an endothermic reaction?
The opposite of an endothermic reaction is an exothermic reaction. In exothermic reactions, energy is released in the form of...
Added: 25 Mar 2000
Updated: 20 Nov 2025
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Which layer of the Earth is a molten layer located between the crust and the core?
The layer of the Earth that is a molten layer located between the crust and the core is called the...
Added: 25 Mar 2000
Updated: 22 Nov 2025
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What is the process where two atomic nuclei combine to form a heavier nucleus?
The process where two atomic nuclei combine to form a heavier nucleus is called nuclear fusion. This reaction powers stars,...
Added: 25 Mar 2000
Updated: 27 Nov 2025
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What is the term for the smallest particle into which an element can be divided?
The term for the smallest particle into which an element can be divided is an atom. Atoms consist of a...
Added: 25 Mar 2000
Updated: 06 Nov 2025
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What is the term for the gradual evolution of traits through inheritance?
The term for the gradual evolution of traits through inheritance is called natural selection. Proposed by Charles Darwin, this process...
Added: 25 Mar 2000
Updated: 23 Nov 2025
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What gas do animals exhale that plants use in photosynthesis?
The gas that animals exhale that plants use in photosynthesis is carbon dioxide (CO2). During respiration, animals release CO2 as...
Added: 25 Mar 2000
Updated: 21 Nov 2025
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What property of water allows it to maintain a stable temperature?
The property of water that allows it to maintain a stable temperature is known as specific heat capacity. Water has...
Added: 25 Mar 2000
Updated: 14 Nov 2025
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Which particle is found in the nucleus of an atom and has a positive charge?
The particle found in the nucleus of an atom and has a positive charge is called a proton. Protons, along...
Added: 25 Mar 2000
Updated: 19 Nov 2025
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What overall effect does deforestation have on carbon dioxide levels?
The overall effect of deforestation on carbon dioxide (CO2) levels is an increase in atmospheric CO2. Trees absorb CO2 during...
Added: 25 Mar 2000
Updated: 20 Nov 2025
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What is the scientific term for the study of fossils?
The scientific term for the study of fossils is paleontology. This branch of science involves examining preserved remains, impressions, or...
Added: 25 Mar 2000
Updated: 08 Nov 2025
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What type of biological molecules are enzymes classified as?
Enzymes are classified as proteins, which function as biological catalysts. They accelerate chemical reactions within living organisms by lowering the...
Added: 25 Mar 2000
Updated: 12 Nov 2025
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What is the primary source of energy in the universe?
The primary source of energy in the universe is the Sun, which generates energy through the process of nuclear fusion....
Added: 25 Mar 2000
Updated: 28 Nov 2025
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What is the main feature that distinguishes a prokaryotic cell from a eukaryotic cell?
The main feature that distinguishes a prokaryotic cell from a eukaryotic cell is the absence of a nucleus in prokaryotes....
Added: 25 Mar 2000
Updated: 07 Nov 2025
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What phenomenon explains the disruption of light waves as they pass through a prism?
The phenomenon that explains the disruption of light waves as they pass through a prism is called refraction. This optical...
Added: 25 Mar 2000
Updated: 15 Nov 2025
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Which organ regulates fluid balance in the body?
The organ that regulates fluid balance in the body is the kidney. The kidneys filter the blood to remove waste...
Added: 25 Mar 2000
Updated: 07 Nov 2025
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