Science 6-7

Question 1

Two types of electricity

Describe them both

Answer 1

Static Electricity
- Non-continuous flow of electrons
- Short period of time
- Protons never move, only electrons

Current Electricity
- Continuos flow of electrons
- Long period of time
- Protons never move, only electrons

Question 2

What are Pure Substances and Mixtures

Answer 2

Pure Substances
- Have one type of particle or chemical

Mixtures
- Have more than one type of particle/chemical

Question 3

Two types of Cells

Describe the differences for complete understanding

Answer 3

Prokaryotic Type
- Premitive Cells
- Smaller Cells
- No membrane-bound organelles

Eukaryotic Type
- Advanced Cells
- Larger Cells
- Has membrane-bound organelles

Question 4

Formula of Photosynthesis

Answer 4

CO2 + H2O + Light Energy + Chlorophyll
= Glucose + Oxygen

Question 5

Formula for Weight

Answer 5

Mass x Gravitational Force = Newtons N

M= N/G

Question 6

What is the function of the E.R in the cell?

What is the full name of this organelle?

Answer 6

Transport of substances within the cell.

Question 7

Name 5 power sources

Answer 7

• Battery
• Nuclear
• Wind
• Hydro-electricity
• Solar energy
• Fossil Fuels
• Geothermal
• Bio-fuel

Only 5 needed

Question 8

What are the two sections of the kingdom Animalia

Answer 8

Invertebrate and Vertebrate

Question 9

What are the two types of forces on structures

And explain and/or give examples

Answer 9

Internal Forces
- An internal force is a force between two parts of the structure or body
- Tension
- Compression
- Tortion
- Shearing

External Forces
- A force that acts upon a structure from outside the structure
- Wind
- Natural Disaster
- Weather
- Loads
- Gravity

Question 10

Draw a spring scale and explain what it’s for

Answer 10

N/A

Question 11

4 Forces of Flight

Answer 11

• Thrust
• Drag (Resistance
• Lift
• Gravity

Question 12

2 types of Biotic Animals

Define the two types

Answer 12

Producers eg. Tree, Algae
- Make their own food photosynthesis

Consumers eg. Animals
- Rely on other living thing for food
- Primary, Secondary, Tertiary

Question 13

Types of Animal Cells

There are 5

Answer 13

• Nerve Cells (Neurons)
• Skin Cells (Epithelial)
• Muscle Cells (Muscle Fiber)
• Skeletal Cells (Bone Cells)
• Blood Cells

Question 14

Differences between Natural ecosystems and Artificial Ecosystems

Answer 14

Page 15 Book 1

Question 15

What are the sub-atomic particles?

Answer 15

Protons (+)
Neutrons (Neutral)
Electron (-)

Question 16

How many kingdom are there there in classifications?

Answer 16

5
- Monera
- Protista
- Fungi
- Animalia
- Plantae

Question 17

Parts of a Simple Circuit

Examples for each

Answer 17

Electric source
* Battery
Conductor
* Wires, Copper
Controller
* Switch
Electric load
* Light Bulb, Computor

Question 18

What is a structure?

Answer 18

A structure is anything put together for a purpose/function.

Question 19

Difference betwen Food Chains and Food Webs

Answer 19

Food Chain
- Simple
- One animal for each role
- Shows only one organism that is eaten

Food Webs
- Multiple food chains interconnected
- Multiple animals for each role
- Shows multiple examples of what an organism eats
- More realistic

Question 20

What is a biome?

Examples for perfect understanding

Answer 20

A biome is a geographical region that has a specific climate, vegetation, animal life, soil type, and temperature.

Eg.
- Tundra
- Taiga
- Temperate Forest
- Grasslands
- Desert
- Savannah
- Tropical Rainforests

Question 21

Differences between conduction, convection, and radiation.

Answer 21

Conduction:
Heat transfer requires particles
During heat transfer, no particles move

Convection:
Heat transfer requires particles
Particles will move

Radiation:
Particles are not required
Particles not involved

Question 22

Name 3 examples of insulators

Answer 22

• Plastic
• Paper
• Rubber
• Wood

Question 23

Explain how a convection current works.

Answer 23

I don’t want to write that.

Question 24

What is the definition of radiation?

Answer 24

Radiation is the transfer of radiant energy through electromagnetic waves.

Question 25

Describe how thermal expansion works.

Answer 25

When heat is applied to particles, they move faster. Then their forces of attractions become weaker and the spaces between the particles become larger.

Question 26

Name 3 renewable energy sources.

Answer 26

* Solar energy * Hydro-electric enrgy * Wind energy * Bio-fuels * Geothermal

Question 27

How is hydro-electric enery produced?

Answer 27

When the movement of water turns the turbine and converts to electric energy.

Question 28

How is solar energy produced?

Answer 28

Nuclear reaction within the sun of hydrogen and helium, which emit heat, light, and nuclear energy.

Question 29

How is wind energy produced?

Answer 29

When the movement of wind turns the windmill which is converted to electrical energy.

Question 30

How is Bio-fuel energy produced?

Answer 30

By fermenting dead plant materials to produce ethanol, which is mixed with gasoline products or used independantly to power vehicles.

Question 31

How is geo-thermal energy produced?

Answer 31

By getherin heat from the lithosphere to heat water and produce steam to turn aa turbine and produce electricity.

Question 32

How is nuclear energy produced?

Answer 32

By splitting uranium, atoms during nuclear reactions produce nuclear energy.

Question 33

How are fossil fuels used to produce energy?

Answer 33

Fossil fuels from the lithosphere are met with oil, coal, natural gas, and are heated to produce steam to turn a turbine and produce energy.

Question 34

What is the differences between mechanical mixtures and solutions?

Answer 34

Mechanical mixtures have visibly distinguishable components. Solution don't have visibly distinguishable components.

Question 35

What is solubility?

Answer 35

A measure of how much solute can be dissolved in a solvent to form a saturated solution.

Question 36

How do you calculate for the atomic mass of an atom?

Answer 36

Mass = protons + neutrons

Question 37

How do you calculate for the number of neutrons in an atom?

Answer 37

Neutrons = atomic mass - protons

Question 38

What is a valent shell?

Answer 38

A valent shell is the last orbit around an atom.

Question 39

What are the valent electrons?

Answer 39

Valent electrons are the electrons is the last orbit.