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Midterm Review 2017
Midterm Review 2017
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7th grade science midterm exam review
Flashcards
30 cards
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Practice quiz
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Questions
30
Answers
1
The purple protist (left) moves using ________ and the green one (middle) uses its _________ .
cilia; pseudopod
pseudopod; flagella
cilia; flagella
flagella; cilia
2
The two images below represent what?
homogeneous mixtures
compounds
heterogeneous mixtures
elements
3
You find an unknown substance. The substance has a bitter taste and a slippery feel. It is a(n)
base
neutral
acid
metal
4
Sodium and Chlorine will bond together by creating a(n) ____________ bond.
metallic
ionic
covalent
nonmetallic
5
You find an unknown substance that is malleabe and ductile. How would you classify it?
acid
nonmetal
base
metal
6
Cell theory does NOT say which of the following?
Cells are the basic unit of structure&function in living org
All living things are made of cells.
Cells must be viewed under a microscope.
All cells come from pre-existing cells.
7
These cells can be classified as:
plant
bacteria
protist
animal
8
You test bubble gums to see which makes the largest bubbles. What is the independent variable?
amount of gum
size of bubbles
Brand of bubble gum
amount of chews
9
#13 on the diagram is the ____: the part you look through to view specimen using a microscope.
body tube
eyepiece
objective lens
stage
10
Lemonade is an example of
an element
a homogeneous mixture
a heterogenous mixture
a compound
11
How do you read a graduated cylinder?
it doesn't matter how you read it
place it flat on a surface and move to see the liquid
hold it up to your eye to see the amount of liquid
ask Google
12
Phenolphthalein indicates when there is
a base
an acid
any pH range
a neutral
13
When two nonmetals bond together by sharing electrons, they for a _______________ bond.
ionic
covalent
nonmetallic
metallic
14
Which is an example of a chemical change?
glass breaking
A bike rusting
snow melting
paper tearing
15
Milk of magnesia and soapy water would be classified as
a base
a strong acid
a neutral
a weak acid
16
What are the reactants in the equation shown?
CO2 and H2O
H2O and O2
CH4 and CO2
CH4 and O2
17
Read the triple beam balance below.
140.2g
100.42g
142g
140g
18
What is responsible for digesting worn out cell parts & helping repair structures in the cell?
lysosome
chromosome
ribosome
vacuole
19
What are the products of respiration?
water, carbon dioxide and energy
water and carbon dioxide
glucose and carbon dioxide
sugar and oxygen
20
The image on the RIGHT shows what type of mixture?
Element
Homogenous Mixture
Heterogeneous Mixture
Compound
21
A balanced chemical equation supports the _________________________.
law of conservation of matter
law of chemistry
law of balanced equations
law of reactants and products
22
Metals are located on the _________ of the periodic table.
all over
middle
right
left
23
Which organelle is responsible for making energy for the cell?
mitochondria
golgi bodies
chloroplast
ribosomes
24
C
6
H
12
O
6
is the chemical formula for
rust
carbon dioxide
salt
sugar
25
Which is an element with similar properties of Neon
Oxygen
Helium
Cobalt
Hydrogen
26
The cell below is most likely from a ________________.
green fish
dog
turtle
palm tree
27
The negatively charged particles orbiting the nucleus are called ________________
protons
neutrons
electrons
nucleus
28
The cell below can be classified as:
eukaryotic and non-photosynthetic
photosynthetic and prokaryotic
Prokaryotic and non-photosynthetic
eukaryotic and photosynthetic
29
The mass of a substance is 15g the volume is 5mL. What is the density?
3 g/mL
75 g/ml
3 g
5 g/ml
30
Lithium and Potassium are in the same
element
period
compound
group
