# 7Th Grade Science FINAL EXAM REVIEW PACKET

Name: ______Class: ______

7th Grade Science FINAL EXAM REVIEW PACKET

A.  Lab Safety

a.  What are 3 important rules of Lab Safety?

i.

ii.

iii.

b.  What is wrong in the picture to the right? →

B.  Scientific Method

a.  What are the steps to the Scientific Method?

b.  What is the difference between the independent and dependent variable?

c.  What is the difference between the control and experimental group?

d.  How many variables can be tested at one time? Why?

e.  What is a constant?

f.  Example: Design an experiment to test 2 different plant foods. List the hypotheses, independent variable, dependent variable, 3 constants, and the type of observations or data you would collect.

C.  Metric System

a.  What is the rhyme to remember the units of the metric system?

b.  Which is larger a Decameter or centimeter?

c.  Explain how the decimal moves when converting 3.4 cm to Dm.

d.  What are the different units of measurement? What tools are used to measure those units?

e.  How do you solve for density? Find the density of the objects to the left →

D.  Rocks & Minerals

a.  What is the definition of a mineral? How many types of materials is a mineral made of?

b.  Explain each of the properties of minerals that can be used to determine which mineral it is.

c.  What are the 3 major types of Rocks? What are some distinguishing characteristics of each?

d.  What conditions must be present for each type of rock to be made?

e.  What is the rock cycle? Can one rock change into another kind of rock?

E.  Weathering & Erosion

a.  What are the 2 types of weathering? How are they different? Give examples of each.

i.

ii.

b.  How is erosion different from weathering? What are the 4 agents of erosion? Explain them.

i.

ii.

iii.

iv.

F.  Plate Tectonics:

a.  Who proposed the theory of plate tectonics? What is the evidence to support it?

b.  What causes the plates to drift? Draw a picture to illustrate it.

c.  Is the earth increasing in size? How?

d.  How do trenches and mid-ocean ridges connect to plate tectonics?

G.  Earthquakes

a.  What kinds of waves are associated with earthquakes? What is the difference between them?

b.  What kinds of earthquake faults are there?

c.  How are earthquakes measured?

d.  How do scientists find the exact location of an earthquake?

H.  Matter

a.  How is physical change different from chemical change? Give 2 examples of each.

b.  How are atoms of an substance arranged in the solid, liquid, and gas states? How do they move?

c.  What are the properties of shape and volume for solids, liquids and gases?

I.  Atoms & Elements

a.  What is an atom?

b.  Describe the parts of the atom.

c.  How can the mass, electron and proton numbers of an element be determined?

d.  How is atomic number different from atomic mass?

e.  What is an element?

J.  The Periodic Table

a.  What is the format of the periodic table? Rows, columns? What does the atomic numbers tell you?

b.  What are the 8 families of elements? What do they have in common with each other?

K.  Solutions & Mixtures

a.  What is a compound? Give 2 examples.

b.  What is a Solution? Give 2 examples.

c.  What is a mixture? Give 2 examples.

d.  Which of the previous can be separated? How could they be separated?

e.  What makes a substance acidic or basic? How can it be neutralized?

L.  The Cell & Microscope

a.  Briefly describe how to properly prepare a wet mount of a slide:

b.  What are the 3 rules of the Cell Theory?

c.  Complete the chart:

Organelle / Function / Found in: Plant, Animal, Both
Nucleus
Cell Membrane
Cell Wall
Mitochondria
Ribosome

d.  What are 3 different types of cells found in the human body? What are their jobs? 