Planet Earth And Beyond + Fuels Energy And Force

Question 1

What influences life on earth?

Answer 1

The sun ☀️ + moon 🌙

Question 2

What is Astronomy?

Answer 2

The scientific study of objects in the universe.

Question 3

What is an orbit?

Answer 3

A constant pathway on which the earth 🌏 revolves around the sun ☀️

Question 4

What are the two forms of energy produced by the sun ☀️?

Answer 4

Heat plus light 💡 energy

Question 5

What is solar energy?

Answer 5

Heat and light received from the sun ☀️

Question 6

What is an axis?

Answer 6

An imaginary line that goes through the center of the earth and comes out by the two poles.

Question 7

What is a day?

Answer 7

The time it takes the earth to rotate around its own axis

Question 8

What is the earths tilt?

Answer 8

23,5 degrees

Question 9

What is the equator?

Answer 9

An imaginary line that runs around the middle of the earth 🌏 splitting it into two hemispheres

Question 10

What is the Southern Hemisphere?

Answer 10

The Southern part of the earth 🌏

Question 11

What is the northern hemisphere?

Answer 11

The northern part of the earth 🌏

Question 12

What are the four seasons?

Answer 12

Summer, autumn 🍂, winter ❄️ and spring

Question 13

What does each season bring?

Answer 13

Change in temperature 🤒, weather, and length of daylight

Question 14

What is the reason why we experience different seasons?

Answer 14

It is the way the earth 🌏 moves in space as it journeys around the sun ☀️

Question 15

What are seasons determined by?

Answer 15

The amount of solar energy the earth 🌏 receives.

Question 16

What is the intensity of solar energy?

Answer 16

Is the amount of solar energy per unit area

Question 17

What is the intensity of solar energy determined by?

Answer 17

The angle of the suns rays striking the earth 🌏

Question 18

What does the length of day + night depend on?

Answer 18

The season and is also determined by the tilt of the earth’s axis

Question 19

Name three important fuels, and where they come from?

Answer 19

Wood - we burn wood to keep warm and 2 cook 👩‍🍳 food 🥘

Coal - comes from trees 🌳 and other plants 🌱 which grew millions of
years ago. The trees 🌳 and plants 🌱 were covered by soil , the
soil pressed down on them. Slowly the trees 🌳 and plants 🌱 turned into coal

Oil - made from tiny plants 🌱 + animals died millions years ago.

Question 20

Name 7 natural sources of energy

Answer 20

Coal, oil, gas, uranium, wind, water 💦, sunlight

Question 21

Name 6 forms of energy?

Answer 21

Heat, light, kinetic, electrical, chemical, and potential energy.

Question 22

Name the three ways of transferring energy?

Answer 22

Conduction, convection and radiation

Question 23

What are the two types of force?

Answer 23

Repulsive and attractive forces

Question 24

What is repulsive force

Answer 24

Push

Question 25

What is an attractive force?

Answer 25

Pull

Question 26

What are the effects of force?

Answer 26

It can change the speed of a moving object It can make a moving object stop 🛑 It can change the direction of a moving object It can change an objects shape It can make a still object move

Question 27

What do you use to measure force

Answer 27

A forcemeter

Question 28

What do you measure force in?

Answer 28

newton’s

Question 29

What is conduction?

Answer 29

The transfer of energy through solids, liquids and gases

Question 30

What is convection?

Answer 30

When the air close to the heat source gets hot and rises and then the cool air sinks to take its place

Question 31

What is radiation?

Answer 31

The transfer of energy in an empty space

Question 32

What color car is it better to have, and why?

Answer 32

A white car 🚙, if you choose a dark colored car it attracts the heat from the sun, if you have a white car 🚗 it reflects the heat from the sun ☀️

Question 33

How are fossil fuels formed?

Answer 33

Millions of years ago, plants 🌱 + animals died in seas or swamps, they were immediately covered and pressed down by sediment, mud and soil, sediments prevented oxygen from getting to the dead trees, this means that bacteria could not exist, which stopped dead organisms from decaying. More and more layers of sediment buried the plant and animal remains deeper and deeper, more layers led to increased pressure, after millions of years the pressure of the layers of sediment and heat(90 to 120 degrees) from the earths core turned these remains into coal, oil and natural gas ⛽️

Question 34

How was oil and gas formed?

Answer 34

* the layers of sediment turned into porous stone, such as limestone and sandstone, which allowed oil or gas to seep through * Cavities formed between the layers of rock. Oil or gas seeped through porous rocks and collected in the cavities * The rocks formed above the cavities were non-porous. They kept the oil or gas trapped in the cavities

Question 35

What is Neap tide and the positioning of the moon 🌙 plus sun ☀️?

Answer 35

Neap tide is extra low high tides, and extra high low tides, the positioning of the moon and sun is in a right angle

Question 36

What is a Spring tide and the positioning of the sun and moon?

Answer 36

Extra high high tides, and extra low low tides, the positioning of the sun and moon is all in a straight line

Question 37

What is a gravitational force?

Answer 37

The attraction between all objects with mass

Question 38

What is gravitation?

Answer 38

The force which tries to pull to objects closer to each other

Question 39

What is an ecosystem?

Answer 39

A community of living organisms and their interaction with the environment