What does Endothermic Mean?
Cold to the touch or colder than room temperature
During an Endothermic change heat enters the system and surroundings feel cooler
What is the chemical symbol C stand for
Carbon
calculate the volume of the rectangle
2cm x 5 cm x 4 cm
2cm x 5 cm x 4 cm= 40 cm3
Which planet would you weigh the least on and why?
Pluto, because it has the least amount of gravitational pull.
What are the 4 most common states of Matter?
Solid, Liquid, Gas, Plasma
Is cooking an egg a physical or chemical change?
Chemical
which one weighs more?
Iron vs Copper
copper atomic weight is 64
Calculate the percentage of red clay
Red Clay 3.75g Blue Clay 2.25g Total Clay 6g
3.75g/6g=0.625=63%
Draw a pie graph of our Earth's atmosphere. Label it with the gas and percentage of each.
Why is the air pressure greater the closer you get to sea level?
Because all the air is above sea level is pushing down.
What Is density?
Density is mass over volume
Density= Mass/Volume
What is an atom?
The basic building blocks of matter in its simplest form.
calculate the mean 54cm+12cm
54cm+12cm=66cm
66cm divided by 2=33
What temperature and time is the greenhouse the warmest?
Greenhouse Temperatures
3pm, 15 degrees Celcius
What does the negative charge on an atom represent?
Electron
What is a physical change?
A change in size, shape, or state of matter but does not affect the chemical nature of a substance.
What are the two major elements in our atmosphere?
Oxygen and Nitrogen
calculate the mean 25cm+62cm
25cm+62cm= 87cm
87cm divided 2= 43.5cm
Why are graphs important to represent data?
Simplifies the data down to easier see trends and the data itself.
What do you call the change of state that goes from a solid to a liquid?
Melting
What is chemical change?
A change of material into another, new materials with different properties and one or more than a new substance is formed.
What is the periodic table?
The periodic table is an arrangement of all known atoms (elements) based off of their characteristics.
calculate the mean 58cm+21cm+50cm+29cm
58cm+21cm+50cm+29cm=158
158 divided 4= 39.5
Name 3 types of graphs.
Line, Pie, Bar
Would your weight or your mass change as you travel to different planets? Why?
Weight, because it is a measure of gravitational pull. Gravity changes on other planets.