Whats the most abundant gas in the atmosphere?
nitrogen
Charles Darwin
What is the atomic number of Holmium?
67!!
What is the process of which a cell splits and produces two daughter cells called?
Mitosis
Whats the name of the largest desert in the world?
Sahara
A car travels at a constant speed of 40 miles per hour. How far does the car travel in 45 minutes?
What two main organelles are in plant cells but not in animal cells?
cell wall and chloroplasts
what is Avogadro's number and what does it tell us?
6.02X10^23, it tells us how many things(atoms, molecules, ions, etc.) are in one mole of something
What is the process in which plants convert sunlight into ATP(energy)?
Photosynthesis
what fruit contains a pit which has enough cyanide to kill us if we eat consume enough of it?
Cherries
When mixing acids and water, which goes first, Adding acid to water, or water to acid?
always add acid to water!!
name the 5 steps of the scientific method in order
identify the problem, research, make a hypothesis, experiment (multiple times), draw conclusion!
Explain how the results of the Rutherford's Gold Foil Experiment changed how we viewed the composition of the atom?
Rutherford's Gold Foil Experiment showed the atom has a dense nucleus
Peristalsis
How many bones do we have in the body?
206
What is the main cause of seasons on the Earth?
The tilt of the Earth's axis in relation to the sun
Who was the scientist that discovered the cell and why did he name it the cell?
Robert Hooke, he named them cells because they reminded him of jail cells.
Name 3 out of the 5 types of reaction and describe what they entail?
Combustion Reaction-Substance reacts with oxygen to make heat and light.(Fuel+O2->H2O+CO2)
Synthesis Reaction-2 or more substances that combine to make another.(A+B->AB)
Decomposition Reaction-One substance breaks down to make two substances(AB->A+B)
Single replacement reaction-a more reactive element takes the place of a less reactive element in a compound (A+BC->AC+B)
Double replacement reaction-positive and negative ions of two different ionic compounds swap partners to form two new compounds(AB+CD->AD+BC)
What are the three smallest bones in the body and where are they located?
Malleus, Incus, and Stapes (also known as Hammer, anvil, and stirrup) they are located in the EAR
What is the name of the only country that borders the United Kingdom?
Ireland
Where does gas exchange happen in the lungs?
Alveoli
name the 4 kinds of clouds and identify which is the cloud which indicates a storm is coming
Cirrus, Cumulus, Stratus, and Nimbus, nimbus (Cumulonimbus) clouds indicate a storm is brewing
Balance this chemical equation:
___ FeS2 + ___ O2 -> ___ Fe2O3 + ___ SO2
_4__ FeS2 + _11_ O2 -> _2_ Fe2O3 + _8_ SO2
In a population of pea plants, some plants have yellow seeds and others have green seeds. The gene for seed color has two possible alleles. One allele is for yellow seeds (Y), and the other allele is for green seeds (y). Two plants cross, one homozygous (yy) and the other heterozygous (Yy), whats the ratio of offspring with yellow seeds and offspring with green seeds?
1:1
Whats the largest planet in the solar system?
Jupiter