Science

Question 1

In a series circuit the voltage is ??? between the components

Answer 1

Shared

Question 2

The voltage supplied to each parallel branch is ???

Answer 2

The same

Question 3

Function of spongy layer

Answer 3

Allow carbon dioxide to diffuse through the leaf

Question 4

Function of stomata

Answer 4

Alows carbon dioxide to enter the leaf and oxygen to leave

Question 5

Function of palisade cell

Answer 5

Let chloroplasts absorb sunlight

Question 6

Function of way layer

Answer 6

Protect the leaf without blocking out light

Question 7

Guard cells

Answer 7

Controls the opening and the closing of the stomata

Question 8

Air gaps

Answer 8

Allow carbon dioxide to diffuse through the leaf

Question 9

What is the role of the leaf in a plant?

There’s two

Answer 9

The main role of the leaf is to collect sunlight for photosynthesis - to make plants food (glucose)
Another is to allow carbon dioxide out of the leaf and oxygen in.

Question 10

Function of a cell wall

Answer 10

Provides structure and support to the cell

Question 11

Function of a cell membrane

Answer 11

Controls what enters and leaves the cell

Question 12

Function of a cytoplasm

Answer 12

When reactions occur within the cell

Question 13

Function of a Nucleus

Answer 13

Controls the activities in the cell and contains genetic material

Question 14

Function of a vacuole

Answer 14

Where starch and water are stored

Question 15

Function of a chloroplast

Answer 15

The site of photosynthesis

Question 16

What goes into the plant?

Answer 16

Oxygen

Question 17

What does the plant release?

Answer 17

Carbon dioxide

Question 18

Water can only fly uo the plant, so it will always travel up from the roots, and leave through the stomata.
Xylem or Phloem?

Answer 18

Xylem

Question 19

Pop Star Can Make Absolute Zillions If Tiny Little Children Spend Gold Pennies

Answer 19

Potassium, Sodium, Calcium, Magnesium, Aluminium, Zinc, Iron, Tin, Lithium, Copper, Silver, Gold, Platinum

Question 20

Difference between metals and non-metals?

Three each

Answer 20

Metal : Good conductor of heat, good conductor of electricity, magnetic, shiny, soluble,malleable, sonorous sound, high melting points, solid at room temperature and ductile
Non-metals : Low boiling point, not shiny, bad conductor of heat, bad conductor of electricity, dull sound, brittle

Question 21

What does MASH stand for?

Answer 21

Metal + Acid ——> Salt + Hydrogen

Question 22

What does BASHO stand for?

Answer 22

Base + Acid ——> Salt + Water

Question 23

What does CASHOCO stand for?

Answer 23

Carbonate + Acid ——> Salt + Water + Carbon dioxide

Question 24

Test for hydrogen

Answer 24

Squeaky pop

Question 25

Glucose can travel up and down, it is made in the leaves and can go down to the roots, or travel further up the plants. Xylem or Phloem?

Answer 25

Phloem

Question 26

Test for Carbon Dioxide

Answer 26

Lime water goes cloudy

Question 27

Test for oxygen

Answer 27

The splint delights itself

Question 28

What does the ammeter measure?

Answer 28

The current

Question 29

Does the current get shared in a parallel circuit?

Answer 29

Yes

Question 30

Does the current get shared in a single circuit?

Answer 30

No

Question 31

How does water dispersal occur?

Answer 31

When the fruit and the seed are able to float along the water source, they’ll germinate in the water or when they reach their destination

Question 32

What name is given to the change of speed that happens between 0 and 4 seconds?

Answer 32

Acceleration

Question 33

What makes a fuel great?

Answer 33

Good cost, abundant, safe, environmentally friendly, transport easily, easily ignited, sustainable, efficiency

Question 34

What causes global dimming?

Answer 34

Carbon (soot)

Question 35

Does monoxide kill?

Answer 35

Yes, it’s toxic

Question 36

What does acid rain kill?

Answer 36

Buildings, forest crops, statues and aquatic animals

Question 37

Name the four seed dispersal

Answer 37

Water Dispersal Animal Dispersal Ejection Dispersal Wind Dispersal

Question 38

What is respiration?

Answer 38

Where the body creates energy so you can make movements

Question 39

What are the 7 terms we use to decide whether something is living or not? MRS GREN

Answer 39

``` Movement Respiration Sensitivity Growth Reproduction Excretion Nutrition ```

Question 40

How do substance enter and exit a cell?

Answer 40

Diffusion

Question 41

Why are bees so important to plants?

Answer 41

They help plants reproduce

Question 42

What does chloroplasts contain?

Answer 42

Chlorophyll

Question 43

Why are leafs green?

Answer 43

Because the chlorophyll from the chloroplasts makes it that colour

Question 44

What is the role of the red blood cell?

Answer 44

To carry more oxygen around the body

Question 45

What is the role of the nerve cell?

Answer 45

To transmit messages from one part of the body to an another

Question 46

What is the role of the egg cell?

Answer 46

They are utilised by female organisms to reproduce offspring

Question 47

What is the role of the sperm cell?

Answer 47

To pass on biological information required to produce a new organism

Question 48

Cells that have features so that they can do particular jobs are called???

Answer 48

Specialised cells

Question 49

What substance do red blood cells carry around the body?

Answer 49

Oxygen

Question 50

Nerve cells can transmit electrical signals because they are???

Answer 50

Long and thin

Question 51

What is the role of the root hair cell?

Answer 51

Allow the plant to absorb more water. They also allow the plant to rake in the minerals in needs to survive.

Question 52

What is inheritance?

Answer 52

Parents pass on their alleles on to offspring

Question 53

What are alleles?

Answer 53

It is a variation of a gene.

Question 54

What is a chromosome?

Answer 54

Thin strands of DNA

Question 55

What is a gene?

Answer 55

A small section of DNA on a chromosome that codes for a protein.

Question 56

Where are chromosomes found?

Answer 56

Nucleus

Question 57

What is photosynthesis?

Answer 57

When the plant makes food for itself

Question 58

Name two highly important reactions that move carbon around the environment

Answer 58

Photosynthesis | Respiration

Question 59

Equation for photosynthesis

Answer 59

Carbon dioxide + Water ——> Oxygen + Glucose

Question 60

Equation for respiration

Answer 60

Oxygen + Glucose ——> carbon dioxide + water

Question 61

What is Global Warming?

Answer 61

It is the term used to describe a gradual increase in the average temperature of the earth’s atmosphere and its oceans.

Question 62

What are the greenhouse gases?

Answer 62

``` Water vapour Carbon dioxide Methane Nitrous oxide Ozone ```

Question 63

What activities do we do that contribute to greenhouse gases

Answer 63

Deforestation Burning Fossil Fuels Distributing fossil fuels releases greenhouse gases Animals emit methane

Question 64

What happens in exothermic and endothermic reactions?

Answer 64

In endothermic reactions, energy enters | In exothermic reaction, energy exits

Question 65

Name one type of chemical reaction that is exothermic

Answer 65

Combustion | Neutralisation

Question 66

Name one type of chemical reaction that is endothermic

Answer 66

Thermal decomposition

Question 67

What is Thermal Decomposition?

Answer 67

Carbon dioxide caused by heat

Question 68

Where is the genetic material found in cells?

Answer 68

Nucleus

Question 69

Name the greenhouse gases

Answer 69

Water vapour Carbon dioxide Methane

Question 70

How do humans create global warming?

Answer 70

Because breathe out water vapour and carbon dioxide. We also release methane from our bottom.

Question 71

How is acid rain made?

Answer 71

Sulphur dioxide and Nitrogen oxide gases are released they go into the clouds (mixed with water vapour) and rain back down.

Question 72

Causes of Nitrogen acid

Answer 72

Cars Engines Factories

Question 73

Cause of Sulphur dioxide

Answer 73

Burning coal Burning charcoal Burning wood

Question 74

What is combustion?

Answer 74

Burning a fossil fuel in oxygen

Question 75

Thermal decomposition

Answer 75

What goes in must come out

Question 76

Where do you get greenhouse gases?

Answer 76

Burning fossil fuels(factories) Cars Farming Deforestation

Question 77

Effects of greenhouse gases

Answer 77

Rise of sea levels Melting ice caps Extreme whether - fires

Question 78

Why is Nitrogen oxide and Sulphur dioxide bad?

Answer 78

Gets into lakes Erode building Kills trees