Pollution+ Acid Rain+ Biomass+ Thermal Decompostion+ Combustion+ Catalyst

Question 1

What things can acid rain damage?

Answer 1

Damages statues
Harms crops by changing the pH of the soils
lightly damages buildings

Question 2

What is coal?

Answer 2

Coal is fossilised plants that have rested in the ground for thousands of years

Question 3

Where does sulphur dioxide, carbon dioxide and nitrogen oxide come from?

Answer 3

Sulphur dioxide comes from burning fossil fuels
Carbon dioxide is from respiration
Nitrogen oxide is from engines

Question 4

What is biomass?

Answer 4

Biomass is the atoms/particles that comes from a living thing. Example: dung, wool and earwax

Question 5

What is excess glucose stored as?

Answer 5

Starch

Question 6

What is an endothermic reaction and would the reaction be cold or warm?

Answer 6

An endorthermic reaction is when heat enters for more energy. The reaction is cold because it has not enough energy.

Question 7

What is an exothermic reaction?

Answer 7

An exothermic reaction is when energy in the form of heat is released.

Question 8

What is thermal decomposition?

Answer 8

Thermal decomposition is when the use of heat is used to separate a compound into 2 products.

Question 9

What is the word equation of thermal decomposition of metal carbonates?

Answer 9

(any metal) carbonate –> metal oxide + carbon dioxide

Question 10

What is a complete combustion?

Answer 10

It when there is enough energy to completely burn the fuels

Question 11

What is an incomplete combustion?

Answer 11

It is when there is not enough energy for a fuel to burn completely creating carbon monoxide.

Question 12

What is a catalyst?

Answer 12

A catalyst is a substance that speeds up the reaction but comes back out unchanged

Question 13

Give an example of a catalyst and what is used for?

Answer 13

Enzymes are catalysts that are inside our body because they help speed up digestion.

Question 14

What is the word equation for photosynthesis?

Answer 14

CO2 + H2O+ (Sunlight)–> C6H12O6+O2

Question 15

Where do all the reactions take place in a leaf?

Answer 15

Palisade cell because that is where most of the chloroplast is.

Question 16

Name all the parts of the leaf.

Answer 16

Waxy layer
Palisade cell
Air gaps
Stomata
Guard cells
Spongy mesophyll

Question 17

How is acid rain created?

Answer 17

Gases dissolve in the water vapour, creating acid rain

Question 18

What is germination

Answer 18

Germination is when a root or a shoot is created

Question 19

What does a plant need to survive

Answer 19

Sunlight
Water
Carbon dioxide
Oxygen
Soil

Question 20

When you put iodine on a leaf ,after placing ethanol, the leaf becomes black in certain areas. Why?

Answer 20

This means that there is excess glucose stored there

Question 21

What’s the function of a stomata?

Answer 21

Let’s CO2 in the leaf