Ingredients in Mixtures
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Last updated over 1 year ago
7 questions
1
How do sieves work to separate mixtures?
How do sieves work to separate mixtures?
1
Click the link to watch the video and learn how salt is separated from saltwater to support freshwater supply and demand.
Video
Why does salt need to be removed from saltwater for us to drink it? How is salt removed from saltwater?
Click the link to watch the video and learn how salt is separated from saltwater to support freshwater supply and demand.
Video
Why does salt need to be removed from saltwater for us to drink it? How is salt removed from saltwater?
1
Click the link to watch the video and learn how microorganisms are used to separate waste from water.
Video
Why are microorganisms used to to separate waste products from water?
Click the link to watch the video and learn how microorganisms are used to separate waste from water.
Video
Why are microorganisms used to to separate waste products from water?
Aquifers
An aquifer is a body of porous rock or sediment saturated with groundwater. Groundwater enters an aquifer as precipitation seeps through the soil. It can move through the aquifer and resurface through springs and wells.
An aquifer is a body of rock and/or sediment that holds groundwater. Groundwater is the word used to describe precipitation that has infiltrated the soil beyond the surface and collected in empty spaces underground.
There are two general types of aquifers: confined and unconfined. Confined aquifers have a layer of impenetrable rock or clay above them, while unconfined aquifers lie below a permeable layer of soil.
Many different types of sediments and rocks can form aquifers, including gravel, sandstone, conglomerates, and fractured limestone. Aquifers are sometimes categorized according to the type of rock or sediments of which they are composed.
A common misconception about aquifers is that they are underground rivers or lakes. While groundwater can seep into or out of aquifers due to their porous nature, it cannot move fast enough to flow like a river. The rate at which groundwater moves through an aquifer varies depending on the rock’s permeability.
Much of the water we use for domestic, industrial, or agricultural purposes is groundwater. Most groundwater, including a significant amount of our drinking water, comes from aquifers. In order to access this water, a well must be created by drilling a hole that reaches the aquifer. While wells are manmade points of discharge for aquifers, they also discharge naturally at springs and in wetlands.
Groundwater can become depleted if we use it at a faster rate than it can replenish itself. The replenishment of aquifers by precipitation is called recharging. Depletion of aquifers has increased primarily due to expanding agricultural irrigation. Groundwater can become contaminated when an excessive amount of pesticides and herbicides are sprayed on agricultural fields, septic tanks leak, or landfills are improperly lined or managed and toxic materials seep through the soil into the aquifer.
Aquifers naturally filter groundwater by forcing it to pass through small pores and between sediments, which helps to remove substances from the water. This natural filtration process, however, may not be enough to remove all of the contaminants.
1
Why are aquifers important to our freshwater supply?
Why are aquifers important to our freshwater supply?
1
How do aquifers separate substances in groundwater?
How do aquifers separate substances in groundwater?
1
Click the link to watch the video and learn how motion and density are used to separate solids, liquids, and gases.
Video
How are mixtures separated inside of a centrifuge?
Click the link to watch the video and learn how motion and density are used to separate solids, liquids, and gases.
Video
How are mixtures separated inside of a centrifuge?
12
Use the information you collected from multiple sources to thoroughly explain how Ingredients in mixtures are separated.
_____________ are combinations of ingredients. Some mixtures are simple and easy to separate. Other mixtures, where ingredients _____________ to form ______________ , require more complex separation techniques. Mixtures are everywhere in our world and sometimes we need to separate them. Understanding the _______________ of the ________________ is the first step to understanding what tools are required to separate them.
More than 70% of the Earth is covered in water, but most of that supply is saltwater. Of the freshwater we have access to, we often need more than we have readily available. In order to keep up with the demand for agriculture, drinking water, and commercial use, scientists developed a process called desalination. _________________ uses ________________ to separate the _________ from the water. Although this is a solution to our freshwater demand, desalination can be expensive and contribute to environmental pollution.
_______________ is a process of removing solids from liquids. This process is used in many ways all over the world. Peat filtration uses organic matter, which is filled with microorganisms, to remove waste from water. _____________, found naturally underground, contain the water we access for drinking, cleaning, and agriculture. As the water runs through tiny spaces between rocks, particles and contaminants are separated from the water.
A _______________ is a machine used in commercial, food and medical industries to separate solids, liquids and gases. Both speed and ____________ are a factor. As the device spins at a high speed, denser matter moves outward, and the less dense matter moves inward. A centrifuge is used to separate DNA, investigate blood, make olive oil, and even wash your clothes!
Other Answer Choices:
Aquifers
ingredients
properties
evaporation
Filtration
salt
dissolve
Mixtures
Desalination
solutions
centrifuge
density