Biology
What is a habitat?
A habitat is the non-living part of an ecosystem
A habitat is the place where the organisms live
What combination of laboratory apparatus is utilized to separate sand from water?
Filter funnel, filter paper, ring, and stand and beaker.
What is the formula for work?
Work = Force x Distance
Evaluate
(a) 5 + 7 x 2 – 18
Answer: 1
Express 48 minutes as a fraction of one hour in its lowest terms.
Answer: 4/5
What is an endangered species
A species whose numbers have been reduced to the point where they are in danger of dying out.
What do all elements in the same group have in common?
They all have the same number of valence electrons
They all have the same number of outermost shell electrons
They exhibit similar properties and reactivity
Give the units for force, work, and distance.
Force Newtons (N)
Work Newton meters (Nm) or Joules (J)
Distance (meters)
Ms. Bain earns $30,483 per year.
How much money does she earn in one month?
Answer: $2540.25
3/5 x 1/4 ÷ 3/8
Answer: 2/5 (lowest terms)
What are the conditions needed for germination to take place?
Water, oxygen, and the correct temperature
What are the end products caused by the reactions of acids and bases of equivalent concentration?
Salt and water
A mover does 2,700 J of work to push a heavy crate 15 meters across a floor. How much force did the mover apply?
F = W/D
F = 2,700 J/15 m
F = 180 J/m or 180 N
Simplify
6m + p + 3p – 2m
Answer: 4m + 4p
Write the decimal 0.65 as a fraction in its lowest terms.
Answer: 13/20
Describe the leaf of a dicotyledon plant.
Broad leaves with branching veins
What does a base release when dissolved in an aqueous solution?
Hydroxide ions or (OH- ) ions in solution.
How many Joules of work is done by a soccer player who applies 250 Newton of force to launch a ball 50 meters?
W = F X D
W = 250 N X 50 m
W = 12,500 Nm or 12,500 J
When 3 is added to 4 times a number, the result is 15.
Write an equation to show this information.
Answer: 4x + 3 = 15
James is 5 years old. His sister Ruth is 4 years old. They share $360 in the ratio of their ages.
(a) Set up the ratio to show James’ age to Ruth’s age.
(b) Calculate the amount of Ruth’s share.
(a) Answer: 5 years: 4years/5:4
(b) Answer: $160
Study the characteristics and give the phylum to which the animal belongs.
This animal has a simple body that is two cell layers thick and has tentacles with stinging cells.
Coelenterates
Give the names of the subatomic particles found in the nucleus of an atom, and give their charge.
Proton (positive charge)
Neutron (neutral) or (no charge)
Give an example of a non-conservative force.
Friction
Air resistance (Drag)
Tension or push-pull force
Calculate 60% of 25 meters.
Answer: 15 meters
Adam is buying some cereal bars from the shop. He finds a box of 6 Brain Grains cereal bars for $ 4.74 and a box of 10 Nutty Crunch bars for $7.80. Which brand is the better value?
Brain Grains: Price = $4.74 for 6 bars
Cost per bar = 4.746/6 =0.79 or 79 cents per bar
Nutty Crunch: Price = $7.80 for 10 bars
Cost per bar = 7.8010/10 =0.78 or 78 cents per bar (Nutty Crunch is the better value)