Biology
What is the definition of "Hydrosphere"
All of the water (oceans, lakes, rivers) on the Earth
What is the third group of elements on the periodic table? (Metal, Non-metal, ____)
Metalloid
Which of these pairs of charges will result in them pushing away from each other?
a) Positive (+) and Negative (-)
b) Negative (-) and Negative (-)
b)
What are stars made out of?
Dust and Gas
Is the Sun a planet?
No
Is there more or less runoff in a city (concrete roads and sidewalks)
More
The pH scale goes from 0 to 14. If something has a pH of 12, is it more acidic or more basic?
Basic
List three ways that we can generate electricity
1) Solar (Using the Sun)
2) Hydro (Using water)
3) Thermal (Using steam)
4) Windmill (Using Wind)
Is a blue star considered hot or cold?
Hot
Metal + Metal = _____ bond
Metal + NonMetal = _______ bond
Ionic and Covalent
In the carbon cycle, how does carbon move from the atmosphere to the plant?
Photosynthesis (plants take in CO2)
What is the missing diatomic molecule?
H2, N2, O2, F2, Br2, I2
Chlorine (Cl2)
What is the difference between static and current electricty?
Static is a charge on the surface of objects, current is a charge that moves in one direction through an object
What is Aurora Borealis?
It is the colours in the Northern Sky - due to solar particles interacting with Earth's atmosphere
What are the three letters that represent plant food?
NPK
(Nitrogen, Phosphorus, Potassium)
What is cellular respiration?
When sugar and oxygen are used to create energy for living things. This will release carbon dioxide and water
How do we find the number of neutrons in an element?
# neutrons = mass number - atomic number
What are the three different types of "meters" in a circuit diagram?
Voltmeter
Ammeter
Ohmmeter
What is the scientific notation for this number:
170,000,000 km
1.7 x 10 8 km
What do you get when you combine an acid and a base? (Neutralization)
Salt and water
What happens if there are no more decomposers?
(worms, bugs, micro-organisms)
- The dead organic matter would build up
OR
- The plants would not get the recycled nutrients
As you move down the periods (rows) of the periodic table, what do you notice?
The amount of valence shells increase as you go down the periods
A TV at UIS uses 20W to use. If the TV has been on for 5 days straight, and the rate is 5.6 cents per kWH, how much is UIS spending on electricity?
20W = 0.02KW
5 x 24 = 120 hours
(120) x (0.02) x (5.6) = 13.44 cents
Why does a satellite not float away or crash back into Earth?
The forward speed AND the force of gravity keep the satellite in orbit
How does dust collect on a screen?
1) The screen will be slightly charged when on
2) Nearby dust will have the opposite charge be closer to the screen
3) The opposite charges will cause the dust to be attracted to the screen