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TCAP Prep 4
Test Description: Various questions to review for TCAP
Instructions: Answer all questions to get your test result.
1) The term heterogeneous means
A
not evenly mixed
B
pure
C
unreactive
D
all the same
2) Three species of birds on an island. Bird A has a heavy bill for eating seeds. Bird B has a pointed bill for eating insects. Bird C has a sharp bill for eating insects and seeds. If all insects suddenly disappeared, which would be least affected
A
Bird A and Bird C
B
Bird B
C
Bird A
D
Bird C
3) Which of the following would most help Marie keep thorough and accurate records for her science project?
A
having a good memory for writing things down the next day
B
writing all her observations in a single laboratory notebook
C
performing experiments at home rather than at school
D
using a pen instead of a pencil for making sketches
4) A biologist notices a species of moth has either dark or light coloration. In a certain area where the tree bark is dark, birds tend to eat the light moths more than the dar moths. Which of the following is a reasonable conclusion?
A
more of the light moths will survive once the dark moths have adapted
B
the light moths have a better chance of surviving than the dark moths
C
more of the dark moths will survive to pass their traits to their offsprig
D
the light moths are more likely to lay eggs on trees with light bark
5) The amount of matter present before a change is the same as the amount present after a change. This principle is called
A
a reversible change
B
photosynthesis
C
the law of conservation of mass
D
the law of conservation of energy
6) What happens during the chemical reaction shown by this equation? Mg+Br2 -=MgBR2
A
a metal and a nonmetal form a molecule
B
a metal and a nonmetal form a salt
C
Magnesium and bromine form a mixture
D
two nonmetal elements combine to form a compound
7) Two populations have developed into two species when
A
the populations can no longer interbreed
B
the populations are separated
C
the populations adapt
D
the populations look different
8) Which of the following applies to a correctly balanced chemical equation?
A
products and reactants have the same number of atoms for each element
B
the subscripts are the same on both sides of the equation
C
products and reactants have the same number of molecules
D
there are at least two products of the reactions
9) Matter composed of two or more pure substances is always
A
a disolved solid
B
a mixture
C
a solution
D
a liquid
10) A scientist notices that lichen are growing only on 1 side of all of the rocks in an area. How might the scientist test her idea that the lichen's growth pattern depends on the position of the growing surface?
A
Collect one of the rocks and place it in a laboratory to observe whether the lichen growth pattern changes
B
Observe the rocks for a year and see if the pattern of lichen growth changes during that time
C
Place new lichen-free rocks in the area in different positions and observe whether lichens grow on a particular side of each
D
Turn one of the rocks around and observe whether lichens grow on the other side of the rock over a period of a month
*select an answer for all questions
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