Chemistry Concepts Animal/Plant Cells Skeletal, Muscular, Skin & Nervous Systems Respiratory, Endocrine & Excretory Systems Life's Structure & Classification, Scientific Method

100

What is an element?
Made of one type of atom. Some examples are H, O, N...

100

What is binomial nomenclature?
This is the name of the two-word system used to name various species.

100

What are the five major functions of the skin?
Protection, sensory response, formation of vitamin D, regulation of body temperature and ridding the body of wastes.

100

What is the use of a dialysis machine?
This treatment is available for patients with kidney failure.

100

What is an organism?
Any living this is called this.

200

What is sodium chloride or table salt?
Sodium metal and chlorine gas react together to produce this edible substance.

200

What is water?
Living things need three things to survive...a place to live, food, and most living things are composed of at least 50% of this substance.

200

What is the muscles must contact?
This must happen to make your bones move.

200

What is the respiratory system?
This body system works with the circulatory system to provide muscle cells with oxygen and includes the pharynx, larynx, and trachea.

200

What is homeostasis?
The regulation of an organism's internal, life-maintaining condition despite changes in its environment is called this.

300

What is it dissolves?
When a spoonful of sugar is stirred into a cup of hot tea, what happens to the sugar?

300

What is the cell wall?
The cells of plants, algae, fungi, and most bacteria and enclosed by this structure, which is not found in the animal cell.

300

What is the nervous system?
This body system is most involved when a person feel’s pain.

300

What is true?
True or False? Organ systems work together to perform life functions.

300

What is phylogeny?
The evolutionary history of an organism is know as this.

400

What is two hydrogens and one oxygen?
According to the chemical formula H20, what is the composition of a water molecule?

400

What is organ systems?
Most many-celled organisms are organized into tissues, organs and this.

400

What is skeletal system?
This body system gives shape and support to the body, protects your internal organs, and blood cells are formed in the red marrow here.

400

What is carbon dioxide?
This waste is eliminated by both the respiratory and excretory systems.

400

What is the hypothesis?
When conducting an experiment, one must make an 'educated guess' about the outcome of the experiment. One would call this statement that can be tested by experimentation or observation as this.

500

What is use a magnet to separate the iron filings from the sand because the iron filings are magnetic and will stick to the magnet and the sand will not.
The easiest way to separate a mixture of iron filings and sand would be this.

500

What is mitochondria?
This organelle is known as the 'powerhouse' of the cell because they release energy that is needed by the cell.

500

What is voluntary muscle and involuntary muscle?
Facial expressions generally are controlled by this type of muscle movement, while our heart is controlled by this type of muscle movement.

500

What is the endocrine system?
This body system sends chemical messages (hormones) in your blood that affect specific tissues.

500

What is how a scientific theory is different than a scientific law?
A scientific theory is an explanation for many observations and is supported by a mountain of evidence and a scientific law is a description of an event that happens again and again.

7th Grade Science 1st Semester Review

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