How can you classify mixture? Mixtures can be classified on the basis of particle size into three different types: solutions, suspensions, and colloids. The components of a mixture retain their own physical properties. These properties can be used to separate the components by filtering, boiling, or other physical processes. Can you still recognize salt from […]
What are the effects of gravity on the movement of objects?
What are the effects of gravity on the movement of objects? Earth’s gravity affects the motion of all the objects we see in daily life by accelerating them toward the center of the earth. Therefore, to efficiently process object motion the human visual system needs to consider gravity. How is gravity related to mass? Since […]
What food nutrient is best for exercise?
What food nutrient is best for exercise? Minimally processed foods are the best for sports and weight lifting nutrition. Lean protein, complex carbs and fiber are your best friends, especially if you’re trying to lose weight. Your body needs lean protein such as turkey, nonfat Greek yogurt, fish and egg whites to build muscle and […]
Why does temperature pressure and density decrease with altitude?
Why does temperature pressure and density decrease with altitude? Altitude is height above sea level. The density of air decreases with height. There are two reasons: at higher altitudes, there is less air pushing down from above, and gravity is weaker farther from Earth’s center. So at higher altitudes, air molecules can spread out more, […]
Is Hekla a shield volcano?
Is Hekla a shield volcano? An active volcano for centuries, the mountain Hekla is one of the most famous in the world. Hekla is a stratovolcano, located near the southern end of the eastern rift zone in Iceland. The whole mountain ridge of Hekla is about 40 km long. The fissure, Heklugjá, which splits the […]
What is photosynthesis answer in one line?
What is photosynthesis answer in one line? Photosynthesis is the process by which plants and some microorganisms make substances like carbohydrates. It is an endothermic (takes in heat) chemical process that uses sunlight to turn carbon dioxide into sugars. The sugars are used by the cell as energy, and to build other kinds of molecules. […]
Why is it possible to use physical properties to separate a mixture?
Why is it possible to use physical properties to separate a mixture? The substances in a mixture are separated by the differences in their physical properties, such as their particle size. The more different the properties are, the easier it is to separate the substances. What are three physical properties used to separate mixtures? Physical […]
What disease can be transmitted through blood?
What disease can be transmitted through blood? Bloodborne pathogens are microorganisms such as viruses or bacteria that are carried in blood and can cause disease in people. There are many different bloodborne pathogens, including malaria, syphilis, and brucellosis, and most notably Hepatitis B (HBV), Hepatitis C (HCV) and the Human Immunodeficiency Virus (HIV). How can […]
What are the factors affecting the height of the waves?
What are the factors affecting the height of the waves? Wave height is affected by wind speed, wind duration (or how long the wind blows), and fetch, which is the distance over water that the wind blows in a single direction. If wind speed is slow, only small waves result, regardless of wind duration or […]