Answer:
Explanation:
Laboratory is a place where ideas and concepts can be tested through experiments. Biology, like any other discipline of science, is based on experimental work and therefore practical forms an integral part of learning.
Magnification by a microscope is a multiple of the X value of the lenses of the eye piece and objective. For example, a 5X eye piece and a 40X objective will magnify the image 5 × 40 = 200 times the size of the object. Similarly, when a 10X eye piece and a 40X objective are used, magnifying power would be 10 × 40 = 400X. Generally, in a compound microscope, the eye piece lenses are 10X or 15X and the objective lenses are 10X as well as 40X.
Answer:
It is impossible to stop a moving thing in zero seconds unless it is above a very slow moving rate such as walking you can stop quickly but when running you cannot.
Explanation:
Earth's service would be bare. There would no longer be life and all water ways would become dried up due to the intense ultra-violent rays of the sun.
The characteristics that describe elements are:
A chemical element is called a substance that is made up of atoms of the same type whose nuclei show the same number of protons.
Therefore, we can conclude that elements are atoms that have the same number of protons in their nucleus.
Learn more about characteristics of an element here: brainly.com/question/1600427
Answer:
The correct options are:
Explanation:
An element can be described as a substance having the same number of protons in its nucleus. It cannot be broken down further in a chemical reaction. It is made up of one type of atom and is a pure substance. For example, the atomic number of oxygen is 8. Hence, the element, oxygen, has 8 protons.
In total, there have been 118 elements that have been discovered and places in the periodic table.
Answer: Electrons are the particles that circles the nucleus of an atom.
Explanation: Each atom has its nucleus. Nucleus present at the centre of the atom.
Inside the nucleus protons and neutrons are present. Protons has positively charged particles on the other hand Neurons are neutral they have no charge.
So, the positive charge of protons make nucleus a positively charged.
Electrons are negatively charged particles. They circles around the positively charged nucleus. Positive charge of nucleus make negatively charged electrons to circle around nucleus.
in theory it should, regardless this is a terrible idea and deprives your body of nutrients. thin does not always mean healthy, please keep this in mind when planning a diet and focus on health, not appearance.
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2. prediction
3. inference
hypothesis
Answer:
A student writes in a laboratory notebook: I placed a piece of iron in a beaker of water and the iron sank to the bottom of the beaker. -- What the student wrote in the laboratory notebook is an example of a(n) *
Explanation:
A student writes in a laboratory notebook: I placed a piece of iron in a beaker of water and the iron sank to the bottom of the beaker. -- What the student wrote in the laboratory notebook is an example of a(n) *