8th Gr Science Sem 1 Final Review Question Preview (ID: 40470)


Geologic Time, Science Skills, Genetics. TEACHERS: click here for quick copy question ID numbers.

A quantitative observation about the desk is:
a) It is 1.5 meters long
b) It is nice-looking
c) It is high quality
d) It has made of wood

What is a qualitative observation about cheetos?
a) They are covered in orange powder
b) They taste terrible
c) They weigh 0.1 grams
d) There are 15 pieces in a bag

15 cm = ____ mm
a) 150 mm
b) 15 mm
c) 1.5 mm
d) 1500 mm

The definition of absolute time is
a) Finding the age of an object by determining the number of years it existed
b) Knowing the exact time with no uncertainty
c) measuring the sequence of events without knowing the exact dates
d) None of above

An example of absolute time is
a) Halloween of 2016
b) Before the start of school
c) After the next full moon
d) My dog is older than my cat

One method to find relative time
a) Superposition of Rock Layers
b) Index Fossils
c) Radiometric Dating
d) None of above

Put in order from biggest to smallest: DNA, Chromosomes, cell nucleus, atom
a) Cell Nucleus, Chromosomes, DNA, atom
b) Chromosomes, DNA, atom, Cell Nucleus
c) Cell Nucleus, DNA, Chromosomes, atom
d) DNA, Chromosomes, Cell Nucleus, atom

In DNA, the following base pairs match up:
a) Adenine with Thymine, Guanine with Cytosine
b) Thymine with Guanine, Cytosine with Adenine
c) Cytosine with Thymine, Adenine with Guanine
d) None of the above

Mutations can be
a) Helpful
b) Harmful
c) Neutral
d) All of the above

Translate the DNA sequence to mRNA: TAC AGG ATA ACT
a) AUG UCC UAU UGA
b) AUG UGC UAU UGA
c) ATG TGC TAT TGA
d) none of above

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