Bestselling Science & Technology Teaching Materials in 2020
Inquiry into Math, Science & Technology for Teaching Young Children
Science: Access, Building Literacy Through Learning
Teaching Math, Science, and Technology in Schools Today: Guidelines for Engaging Both Eager and Reluctant Learners, 2nd Edition
- Rowman Littlefield Publishers
The Impact of the Laboratory and Technology on Learning and Teaching Science K-16 (Research in Science Education)
- Used Book in Good Condition
For White Folks Who Teach in the Hood... and the Rest of Y'all Too: Reality Pedagogy and Urban Education (Race, Education, and Democracy)
- For White Folks Who Teach in the Hood and the Rest of Y all Too Reality Pedagogy and Urban Education
Technology: Feats and Failures (TIME FOR KIDS® Nonfiction Readers)
Guided Science Readers Parent Pack: Levels E-F: 12 Fun Nonfiction Books That Are Just Right for New Readers
General, Organic, and Biological Chemistry: Structures of Life (5th Edition)
Chemistry For Changing Times (14th Edition)
Principles of Chemistry: A Molecular Approach (3rd Edition)
Nutrition & You (4th Edition)
Child's Introduction to the Night Sky: The Story of the Stars, Planets, and Constellations--and How You Can Find Them in the Sky (Child's Introduction Series)
- Child s Introduction to the Night Sky The Story of the Stars Planets and Constellations and How You Can Find Them in the Sky
Chemistry: An Introduction to General, Organic, and Biological Chemistry (13th Edition)
How to Keep Your Liver and Kidneys Healthy
The liver and kidneys are remarkable pieces of organic engineering, working to eliminate undesirable substances.
Your liver is like a chemical processing plant, converting everything you eat, breathe and absorb through your skin into life-sustaining substances. It plays a vital role in the digestive process as it is responsible for producing bile, a substance stored in the gallbladder that aids the breakdown of fats. Your liver also processes digested food and disperses it throughout your body.
The liver also acts as an excretory organ, filtering toxins from your blood and converting them into waste, which is excreted into the bile -produced for this purpose - or blood and expelled in the form of feces or urine. A diet high in fats, sugars and alcohol, along with environmental toxins such as pesticides and nitrates, can seriously affect your health by interfering with the liver's functions. Fortunately, your liver has amazing powers of regeneration and a liver detox can work wonders for your whole body.
The liver is the largest organ inside your body and has an enormous amount of blood flowing through it every minute. It consists of two main lobes that appear flat and smooth, but which are actually made up of many thousands of microscopic cells.
These liver cells are separated by spaces that act like a filter or sieve through which the unfiltered blood flows. Liver cells play an essential role in ridding the blood of unwanted substances. They ingest and break down toxic matter such as dead cells, micro-organisms, and chemicals, such as nitrates or preservatives, drugs and other debris from the blood stream.
To prevent your liver from becoming overworked, it is important to limit your intake of toxins such as:
As well as reducing toxin intake, try incorporating a number of simple, common-sense steps that can help to improve the overall functioning of your liver.
Your kidneys play two vital roles in your body: balancing fluid and nutrient levels and excreting waste.
Your kidneys ensure that you don't become dehydrated or over-hydrated; they also monitor your salt levels. During the Stone Age, salt was scarce and potassium was abundant; the kidneys functioned to excrete potassium in the urine, but hold onto precious sodium. Today, the reverse is true of your diet: salt is abundant and people ingest less potassium. The kidneys have not similarly evolved and this excess of salt can put a real strain on the kidneys, making it harder for them to maintain the correct mineral and fluid balance.
The kidneys are also excretory organs, filtering toxic waste from the blood and converting it into urine, which is then expelled from the body via the bladder. At the same time, your kidneys selectively reabsorb useful compounds, such as glucose, amino acids and minerals, which can then be returned to the bloodstream.
The kidneys are two bean-shaped organs dorsally situated either side of your spinal column, just above your waist. Each kidney is divided into an outer part, known as the cortex, and an inner part, the medulla. The medulla contains several structures known as renal pyramids, which drain into a central reserve known as the renal pelvis.
The renal artery branches throughout each kidney, supplying it with about 90 liters of blood every day. As blood flows through the kidney, water and other constituents are absorbed by millions of blood-processing units known as nephrons. Useful products are reabsorbed, while excess water and waste are excreted as urine, which drains into the bladder via the renal pelvis.
Your kidneys work hard for your body and you need to show them some tender, loving care to keep them at their best.
Your body's purification system can only function properly if the water flowing through the kidneys is sufficient to carry away waste, so make sure you drink at least eight glasses of water every day.