Chemistry
MULTIPLE CHOICE: Reacts with water is a _______ property A: chemical B: Physical C: Qualitive D: Quantitative
A
MULTIPLE CHOICE: During which stage of mitosis
are the chromosomes are visible? A: interphase B: metaphase C: prophase D: telophase
C
MULTIPE CHOICE: On the electromagnetic spectrum what has the most electromagnetic wave? A: X-RAY B: ULTRAVIOLET C: MICROWAVE D:GAMMA RAY
D gamma ray
MULTIPLE CHOICE: what is the layer of the atmosphere is closest to the earth called? A: TROPOSPERE B: MESOPHERE C:STRATOSPHERE D: THERMOSPHERE
what charge does a proton have?
positive charge
TRUE OR FALSE: Physical properties can be observed or measured without forming a new substance
true
TRUE OR FALSE: here is four types of specializes cells
FLASE there are 5
TRUE OR FALSE: SALT stands out for: size, attitude, location, type
TRUE
TRUE OR FALSE: rainfall, snowfall and wind condition are not a sign of climate change
FALSE rainfall, snowfall and wind condition are a sign of climate change
what is a atomic number?
the number of protons in a element's nucleus
How many electrons can the first energy level have in a Bohr-Rutherford diagram?
2 electrons
what are two organelles that plants have but animals don't?
Chloroplasts and cell wall
what is the summary of the eye? (the pathway)
Light ray - eye ( cornea - aqueous humor - lens - vitreous humor ) - retina - brain
name 2 natural greenhouse gases
could be:
-carbon dioxide
-Methane
-Nitrous oxide
-Water vapor
TRUE OR FALSE: some causes of cancer are radiation like sun and x rays. also cigarette smoke, air pollution and additives to foods
TRUE
What is the element symbol for Helium?
HE
What are the 4 names of the digestive process?
Ingestion, Digestion, Absorption and Elimination
what is an example of bioluminescence?
fire fly
What is greenhouse effect?
the sun's energy arrives at the atmosphere most energy is reflected back into space. Some energy continues on the strike the earth's surface some of the earth's energy reflects back out but its trapped by the gases in the atmosphere.
What s a pre substance?
A substance that contains only one type of particle
Arteries, Capillaries and Veins
what are the secondary colors of light?
yellow, cyan and magenta
what is climate change?
The weather condition pattern changing over a long period