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Social Sciences

The study of human society and of individual relationships in and to society.

5,538 Questions

What are examples for liquid?

Some examples of liquids include water, milk, juice, and alcohol. Liquids have a definite volume but take the shape of their container.

How did the thermal energy of the cookies transfer to the counter?

The thermal energy of the hot cookies transferred to the cooler counter through a process called conduction. When the cookies were placed on the counter, heat energy moved from the cookies to the counter as they came into direct contact, causing the counter to warm up.

A force that pulls objects towards eachother?

Gravity is the force that pulls objects towards each other. It is a fundamental force of nature that causes objects with mass to be attracted to each other.

What is the displacement of water?

When objects cannot be easily measured with a ruler water displacement is used to measure the objects volume. Water displacement measures the amount of water that is displaced, or moved. The amount that the waster rises is mL indicates the volume of the object in Cm3

What is the direction of a shadow?

A shadow is formed in the opposite direction of the light source. For example, when the light source is behind an object, the shadow is cast in front of the object.

What causes the ice to change to water as they pass the block round from hand to hand?

The heat from their hands transfers to the ice, causing it to melt and change from a solid to a liquid state (water). The increased temperature breaks the bonds holding the ice molecules together, allowing them to move more freely and flow as liquid water.

How does the sun affect the weather?

The sun, the closest star of the sky, is more than our source of light. It provides heat, energy and acts as the main engine driving the atmosphere on our planet. The sun generates temperature variations so that basically, every weather phenomenon available on earth can be traced to the sun.

The sun typically warms up the earth unevenly due to the earth's natural tilt at an angle of 23.5 degrees which causes the areas near the equator to be warmed up much more than the Poles. This causes the major climate differences we see between the equatorial areas typically mildly temperated and the Polar regions extremely gelid. The earth's natural tilt is also what causes weather and climate differences throughout the year known as seasons.

The sun plays a primary role in affecting weather patterns on earth, here are a few examples:

-When the sun warms up air, the area encompassing this warm air in meteorology is known as a warm front. Many weather phenomenons occur when a warm front meets a cold front.

-The sun will warm up the earth's surface and this warm air will expand and rise, as it rises, the air will then cool and descend. This up and down cycle of rising warm air and descending cool air will generate a weather phenomenon known as wind.

-The sun will warm up air over the sea near the equator and this warm air will rise creating a cloud. Cold air will then replace the warm air that has lifted and the clashes between cold and warm air will be creating spiraling turbulence known as a hurricanes.

-The sun creates warm air which then abruptly turns cold, this creates pressure and turbulence which whips up a tornado.

-The sun warms up the ocean's, lake's and soil's surfaces causing warm air to rise in the athmosphere up to a point where it will meet colder air causing it to condense and generate clouds that in turn, will produce rain, hail or snow. This is know as the water cycle which is fundamental for all living beings on earth.

In the past, people thought that the closest you could get to the sun the warmer it would be. This is actually untrue. If you climb to the top of a mountain you will likely feel a dramatic climate change. This is because as warm air rises it tends to cool, therefore, making mountain tops often cold and capped with snow.

As seen, the sun plays a primarily role on affecting the weather patterns on earth. However, recently the sun has also been perceived as a main contributing factor of global warming. HEHE

How many red blood cells are made each day and where are they made?

The are made in bone marrow or the spongy bonepart of the bone. Look in your science book to double check!

What type of energy is a burning match?

A burning match produces thermal energy, in the form of heat and light, due to the combustion reaction of the match head with oxygen in the air.

What is it called when you rub your sock covered feet on a rug across the room and then touch a doorknob?

This is called static electricity. When you rub your feet on the rug, electrons are transferred from the rug to your body, creating a charge imbalance. When you touch a doorknob, the excess electrons on your body are discharged, creating a spark.

How can a bimetallic strip be used to regulate temperature?

A bimetallic strip is two different metals glued together. When the temperature changes each metal expands (or contracts) but by different amounts, so the strip as a whole ends up bending. This bending property can be used to turn on (or off) a heater switch.

Is a car's speedometer show instantaneous speed average speed or velocity?

A car's speedometer typically shows the instantaneous speed, which represents the current speed of the vehicle at any given moment. It does not show average speed or velocity.

How does weather change?

Weather changes are primarily influenced by patterns in air pressure, temperature, and humidity. These changes can be caused by factors such as the movement of air masses, the interaction of warm and cold fronts, and the influence of large-scale weather systems like low pressure systems and high pressure systems. Other factors, like the presence of clouds, precipitation, and wind, can also impact how the weather changes.

Why does weather change?

Weather changes because differential temperatures cause density changes in air and water, and the resulting pressure gradients stimulate the movement of air masses. Coriolis forces contribute to the effects.

The Sun is the prime mover in all this. Sunlight heats the surface of the earth, and does so selectively because areas farther north or south do not receive the same amount of solar energy. Atmospheric effects influence the weather. Clouds reflect sunlight. Fires, volcanic action and human activity fill the air with a variety of gases and particulates that absorb or reflect more sunlight, each according to its own properties. All of this, the weather, is a dynamic process. It is in flux; it is changing. And the complexity of weather presents us with challenges in managing everything from the growth of food crops right down to planning the logistics of our daily lives.

The latitude, elevation, air pressure, cloud cover, and albedo of the surface, along with the effects of nearby water areas, are what cause the uneven heating of the Earth's surface, so that different areas will have different temperatures.

What happens when a net force acts on a object?

When a net force acts on an object, it causes the object to accelerate in the direction of the force. The acceleration of the object is directly proportional to the net force applied and inversely proportional to the mass of the object, as described by Newton's second law of motion.

Which is closer to the equator Sahara or Colombia?

Colombia.

Colombia lies across the equator in northern South America, from about 12° N down to 4° S latitude. Almost all of the Sahara is north of the Tropic of Cancer, from 23.5° N up to 33° N latitude in Africa.

What is the chemistery?

Chemistry is the scientific study of the composition of substances and their properties. It also deals with the ways in which these substances interact, combine, and change to form new substances.

Does marble weather easily?

Marble is a naturally porous and soft stone, so it is susceptible to weathering if not properly sealed and maintained. Over time, exposure to elements such as sunlight, water, and temperature changes can cause erosion and discoloration of the surface. Regular sealing and cleaning can help to preserve the appearance and longevity of marble.

How do you know that yeast is alive?

You can tell yeast is alive when it starts to ferment, producing bubbles and releasing carbon dioxide, which causes dough to rise. Another way is to observe its growth and reproduction under a microscope or by seeing it consume sugar and produce ethanol and carbon dioxide.

A force you exert towards you?

An example of a force you exert towards you could be pulling an object towards yourself, such as pulling a book off a shelf towards you. This force is known as a tensile force and is directed towards the individual applying the force.

Why is water loss reduced in the lungs in hot weather yet it is the highest in long heavy exercise?

In hot weather, the body may prioritize cooling mechanisms such as sweating over water loss through respiration in order to maintain core temperature. During long, heavy exercise, the increased breathing rate and depth leads to more water loss through respiration as the body works to meet the increased oxygen demand for energy production.

Why is the beaver important?

Beavers are important for their role in ecosystem engineering. They create wetland habitats that benefit a wide variety of plant and animal species, help control flooding by building dams, and improve water quality by filtering pollutants. Their activities contribute to the overall health and biodiversity of ecosystems.