WorksheetsMCA Challenge R4
Total questions: 12
Worksheet time: 6mins
Name
Class
Date
1.
Many products are now manufactured (made) with materials that are not very durable (don't last long). What is an advantage to the consumer (person who buys the product) for buying things made of less durable materials?
a)
The product may not cost as much
b)
The product may cost more
c)
The product will last longer
d)
The product may fall apart more quickly
2.
What would be true of the mass of the chemicals before and after a chemical reaction?
a)
The mass of the chemicals will be greater after the reaction
b)
The mass of the chemicals will be greatest during the reaction
c)
The mass of the chemicals will be greater before the reaction.
d)
The mass of the chemicals will be the same before and after the reaction.
3.
If you push a toy boat in a pond, it begins to slow down. Which force is most likely the greatest cause for the boat to slow down?
a)
Friction in the water
b)
Friction of the air against the boat
c)
The force of gravity
d)
There are no forces to slow it down
4.
As amplitude increases what increases on the wave?
a)
The distance above and below the node
b)
The distances between the crests
c)
The rarefaction
d)
The doppler effect
5.
Common buckthorn, Euarsian water milfoil, zebra mussels, and purple loosestrife are all organisms that humans have introduced to Minnesota. They are not native, and grow and spread quickly, taking over space where native organisms should be flourishing. What do we call these aggressive nonnatives?
a)
purebreds
b)
invasive species
c)
dominant species
d)
recessive species
6.
A trait that helps an organism survive and reproduce is called a(n)
a)
mutation
b)
selection
c)
adaptation
d)
variation
7.
What units within a cell carry the information that determines an inherited trait?
a)
genes
b)
mitochondria
c)
hair color
d)
golgi bodies
8.
Cell theory states that ___________
a)
All living organisms can move.Option 1*
b)
All living organisms have a brain.
c)
All living organisms need oxygen.
d)
All living organisms are made of cells.
9.
Which method of scientific investigation would you use to answer the following question: How does ramp height affect marble distance?
a)
controlled experiment
b)
field study
c)
review existing work
d)
model
10.
What part of the water cycle can remove pollutants from the water.
a)
evaporation
b)
run-off
c)
precipitation
d)
condensation
11.
Which layer(s) of the Earth is made of iron and nickel?
a)
Inner core and outer core
b)
Mantle
c)
Lithosphere (crust) and mantle
d)
Asthenosphere
12.
2 kg of baking soda and 2 kg of vinegar are reacted together in a closed plastic bag. What is the FINAL mass of the products?
a)
4 kg
b)
2 kg
c)
8 kg
d)
6 kg
100 %
