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Semester Review 3
Test Description: 1st semester review #3
Instructions: Answer all questions to get your test result.
1) A vulture feeds on the a deer that was killed by a lion. A vulture is called a scavenger. What breaks down the remains of the deer after the vulture has finished feeding?
A
scavenger
B
bacteria
C
herbivores
D
omnivores
2) A marathon runner has to wear shoes 1 size larger due to the constant running causing the feet to swell. The swelling of the feet is an example of a ....
A
chemical change
B
physical change
3) An alka seltzer was placed in a glass of water. The water began to bubble with a new gas called carbon dioxide. This is an example of a ....?
A
Physical change
B
Chemical property
C
Physical property
D
Chemical change
4) Where are chromosomes found?
A
Inside the nucleus
B
Inside the cell wall
C
Inside the chloroplasts
D
Inside the mitochondria
5) An ice cube melting then evaporating is an example of a ...........?
A
physical property
B
physical change
C
chemical property
D
chemical change
6) What is the difference between a food chain and a food web?
A
Food chains are overlapping patterns while food webs show a single flow of energy
B
Food chains show a single flow of energy while food webs show how many food chains are interconnected
7) Describe the living and the nonliving parts of an ecosystem
A
Every ecosystem has biotic and abiotic factors. Biotic factors are the living parts of an ecosystem and abiotic are the nonli
B
Every ecosystem has biotic and abiotic factors. Biotic factors are the nonliving parts and Abiotic are the living parts of a
8) In the winter many people build fires in their fireplaces for warmth. After awhile the logs burn down into ash.
A
A new substance formed represents a physical change has occurred
B
A new substance formed represents a chemical change has occurred
9) Which state of matter represents a solid?
A
particles vibrating in place rapidly
B
particles quickly moving with a lot of space between them
C
particles free flowing sliding past one another
10) Which of the following is evidence a chemical change has occurred....?
A
Bubbles are created, heat is released, the substance melts and a new substance is formed
B
Heat is released, bubbles are created, and a new substance is formed
C
A substance melts, evaporates or is heated up
*select an answer for all questions
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