MYSTERY A
After you place an object in water the volume level goes up to 125 mL
It has a mass of 100 grams.
What is the object's density?
Volume displaced = 25 mL
Mass = 100 grams
Density = Mass/Volume = 100 / 25
= 4 g/mL
True or false: Identical genetic plant clones will always grow to the same height since they have the same genes.
False. Their environments matter!
CH4 + 2O2 --> CO2 + 2H2O
What are the reactants in this chemical equation?
CH4 + 2O2
Transform plate boundaries would be where you'd typically find ...
Earthquakes
Two objects have the same force applied to them but Object #1 accelerates less than Object #2. What can you infer is the difference between them?
Object 1 has a greater mass than Object 2
It leads to a buildup of greenhouse gases which are really good are trapping heat
An object travels at a speed of 50 m/s and travels for 5 seconds. How far did it travel?
D = S * T
D = 50 * 5
D = 250 meters
As you go deeper and deeper down in the ocean, the temperature of the ocean typically ...
Decreases
An object with a mass of 10 kg is being accelerated to 20 m/s2 . What net force must be applied to this object?
F = M * A
F = 10 * 20
F = 200 Newtons
Places that have a _________ latitude are generally much warmer.
Low
Methane reacts with Oxygen to produce Carbon Dioxide and Water as shown below:
CH4 + 2O2 --> CO2 + 2H2O
How many oxygen atoms are present in the products? Does this need to equal the number present in the reactants?
4 and yes (law of conservation of mass)
Igneous rock is made from ...
Magma cooling
WHat is it called when humans change a species over time for our benefit and how do we achieve that?
Artificial selection - we choose which offspring to breed with each other to maximize a particular trait.
If something is made up of two atoms chemically combined together, like NaCl (sodium chloride, which is table salt), what is this called?
A compound
The distance between the height of two waves is called the...
Wavelength
land ; far
Methane reacts with Oxygen to produce Carbon Dioxide and Water as shown below:
CH4 + 2O2 --> CO2 + 2H2O
How many molecules of oxygen are required for this reaction?
Two (2 O2)
What's an advantage of organisms that sexually reproduce?
What's an advantage of organisms that Asexually reproduce?
For sexually reproducing - genetic variation
For asexually reproducing - reproduces a lot offspring very fast
This type of air mass brings humidity and warm weather.
Maritime tropical (mT)
You combine liquid water, soap, and pieces of iron into a jar. The iron sits at the bottom while the soap and water mix together. What type of mixture have you made?
A heterogeneous mixture
A dog can have floppy ears (dominant) or pointy ears (recessive). A mommy dog has pointy ears and the dad has floppy ears. If they have 4 puppies and 2 have floppy ears and 2 have pointy ears, what is the genotype of the dad dog?
Heterozygous
Low
As thermal energy is added to a substance, the particles will start to move _____________________ and become ___________________ spread out.
faster; more
True or false. You can use physical properties of matter to separate a mixture.
True. Physical properties don't change!
Star System CD is composed of two stars (C and D) orbiting around each other at a distance of 5 light years. Assume all stars have the same mass.
The gravity of Star A on Star B is __________ than the gravity between Star C and Star D.