Law Of Conservation Of Matter

Matter Cannot Be Created Or Destroyed

What is happening at the triple point?

The substance is in all three phases of matter

Difusion of water through a semi-permiable membrane

Difference between osmosis and diffusion?

Diffusion is the solute particles and osmosis is the solvent particles.

A rigid layer that surrounds the cell and other organisms

What is a food chain?

a series of organisms each dependent on the next as a food source

Levels of cellular organization, smallest to largest:

Cells, Tissues, Organs, Organ Systems, Organisms

Describe the process of PHOTOSYNTHESIS!

How the plant uses sunlight to make sugar

2 or more substances physically combined

What is the location and charge of an electron?

Orbiting the nucleus, negative.

A pure substance made of two or more elements

a substance that can not be further simplified

What does the atomic number do?

Tell the amount of electrons and protons

The characteristics of metalloids are

A mixture of metals and nonmetal characteristics

The substance you start with before a chemical reaction

After the sun, where does a food chain start?

with plants that make their own food

the substance formed in a chemical reaction

What's Cellular Respiration?

The process cells use to to release energy stored in sugar.

The arrows on a food web...

...shows the direction the energy is moving to

tells how many molecules there are

what do organelles do?

perform specific functions within the cell

What are the differences between plant and animal cells?

plant cells have a cell wall & chloroplast, not animal cells

a system of interlocking and interdependent food chains

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Mrs. Bee 7th Grade Science Benchmark 2

50 termsStudBud Administration187 plays

Holston Middle School Knox County TN

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Questions 50

Answers

1
Plant, animal and protist cells are all ?
Eukaryotic Cells
Prokaryotic Cells
2
Law Of Conservation Of Matter
Matter Can0t Be Created and Destroyed
Matter Cannot Be Created 0r Destroyed
Matter Cannot Be Craeted Or Destroyes
Matter Cannot Be Created Or Destroyed
3
a molecule is what
a mixture joined together
one kind of atom
2 or More atoms
the same atom joined together
4
What happens to temperature when you decrease volume?
the temperature goes up
the temperature goes down
the temperature stays the same
5
a molecule is what
the same atom joined together
2 or More atoms
a mixture joined together
one kind of atom
6
Metalloids are located...
on the left side
on the right side
along the "staircase"
7
What is happening at the triple point?
The substance is melting
The substance is a liquid and a gas
The substance is in all three phases of matter
Explosion
8
Which side of the chemical equation is the product on?
Center
Right
Both
Left
9
What is osmosis?
Difision of water through a permiable membrane
Difusion of water through a semi-permiable membrane
10
What is the smallest non-living thing?
Element
organelle
atom
cell
11
Metals are mallebale
They can bend into a wire
They conduct electricity
They can be hammered flat
They are reactive
12
How many electrons does a Carbon atom have?
1
4
6
12
13
Identify the PRODUCERS in the food web:
Marsh Grass
Marsh grass and Cattail
Marsh grass and grasshopper
Cattail
14
Difference between osmosis and diffusion?
None of the above
Diffusion is the solvent particles and osmosis is the solute particles.
Diffusion is the solute particles and osmosis is the solvent particles.
both yellow and blue
15
Which direction particles move in diffusion
From Wales to Liverpool
Low to high
From bath to wales
High to low
16
Cell Wall
A wall that blocks out the bad things
A rigid layer that surrounds the cell and other organisms
A layer that surrounds the cell and protects it
A layer around the nucleus
17
What is a food chain?
A mix of two or more overlapping food chains
a series of organisms each dependent on the next as a food source
The sun
animals that eat each other
18
Levels of cellular organization, smallest to largest:
Organisms, Tissues, Organs, Organ Systems, Cells
Cells, Tissues, Organs, Organ Systems, Organisms
Organs, Organ Systems, Organisms, Cells, Tissues
Organisms, Organ Systems, Organs, Tissues, Cells
19
Describe the process of PHOTOSYNTHESIS!
The green pigment in the plant
How the plant uses sunlight to make sugar
IDK
20
How do we find the atomic mass?
Protons + Neutrons
Electrons + Protons
Protons - Mass
Protons - Electrons
21
What is a mixture?
two atoms of the same element chemically combined
the basic unit of matter that cannot be broken down
2 or more atoms chemically combined
2 or more substances physically combined
22
What is the location and charge of an electron?
Nucleus, positive.
Nucleus, negative.
Orbiting the nucleus, negative.
Orbiting the nucleus, positive.
23
What is a compound?
A pure substance made of one element that removes waste from the cell
A pure substance made of one element represented by a chemical symbol
A pure substance made of two or more elements
the average mass of an element and its protons
24
Which organelle receives materials and sends them to other parts of the cell?
golgi body
endoplasmic reticulum
mitochondria
ribosomes
25
Subscripts in an equation represent
Number of mole
Compounds
Number of molecules
Number of atom
26
All organelles inside the cell float in the ____________________
Plasma Membrane
Mitochondria
Lysosomes
Cytoplasm
27
5CaCO3 how many total atoms are there ?
27
24
15
25
28
What is an element?
anything that floats freely
a substance that can not be further simplified
a tiny muscle that creates blood
anything inside your nose
29
What does the atomic number do?
Tell the amount of electrons and protons
Tell the amount of just neutrons
Tell the amount of just protons
Tell the amount of just electrons
30
What are the Reactants of Cellular Respiration?
6CHO
C6H12O6 + 6O2
5C1 1/5+H
C6+12H
31
Photosynthesis Equation
6H2O + 6O2 ---> C6H12O6 + 6O2
6H3O + 6O2 --> C6H12O6 + 6O2
6H2O + 6O2 ---> C6H12O2 + 6O2
H2O + O2 ---> C6H12O6 + O2
32
The characteristics of metalloids are
Too weird to discuss
Similar to nonmetals
Similar to metals
A mixture of metals and nonmetal characteristics
33
what do plant and animal cells both have?
nucleus
Chloroplasts
Centrioles
Cell Wall
34
What is a reactant?
The substances that are formed by a chemical reaction
A volatile chemical
A dangerous substance
The substance you start with before a chemical reaction
35
After the sun, where does a food chain start?
with plants that make their own food
with animals that eat plants
With plants that eat other plants
36
What is a product?
the thing you want to make
the substance formed in a chemical reaction
the substance you begin wit in a chemical reaction
a fancy word for makeup
37
What's Cellular Respiration?
The process cells use to to release energy stored in sugar.
How energy forms
another word for energy
The border of cells
38
What are the Products of Cellular Respiration?
Both A and B
None of the Above
6CO2 + 6H2O + ATP
12CHO6
39
The arrows on a food web...
...shows who is the predator.
...show who is the prey.
...shows the direction the energy is moving to
40
The Cell Theory
Cells are the basic unit of life.
All of the Above
All living things are made of 1 or more cells.
cells come from existing cells.
41
Protista are one of the 6 kingdoms
False
True
42
Which is not a Chemical properties
Density
Reactivity
Acidity
Combustion
43
Select Physical properties
Odor
Flammability
Conductivity
Toxicity
44
can a ductile compound be made into wires?
False
True
45
What statement about Osmosis is NOT true
Water travels from high to low concentration
Requires energy
The water is trying to reach an equilibrium
46
Which side of the chemical equation is the reactant side?
Right
Both
Center
Left
47
A coefficient...
tells how many molecules there are
is slightly below & after the element
tells how many of one element there is
is two people being efficient together
48
what do organelles do?
perform specific functions within the cell
directs cell activities
responsible for production of ribosomes
regulates what enters and leaves the cell
49
What are the differences between plant and animal cells?
plant cell is yellow and animal cell is red
plant cells have a cell wall & chloroplast, not animal cells
animal cells have a cell wall & chloroplast, not plant cells
plant cells have a cell wall and cytoplasm, not animal cells
50
What is a food web?
animals and plants
series of organisms that are dependent on the next organism for food
a system of interlocking and interdependent food chains
animals only

Mrs. Bee 7th Grade Science Benchmark 2 Flashcards | StudBud