8
Evidence cards. Mobile phones cause health problems. Mobile phones produce microwaves Microwaves make water molecules move faster The body contains lots of water Some people who live near mobile phone masts complain of headaches Research shows that there is an increased chance of users getting tumours in the part of brain next to the ‘phone’ ear. Microwaves can penetrate the skull of a young child.

Evidence cards. Mobile phones cause health problems. Mobile phones produce microwaves Microwaves make water molecules move faster The body contains lots

Embed Size (px)

Citation preview

Page 1: Evidence cards. Mobile phones cause health problems. Mobile phones produce microwaves Microwaves make water molecules move faster The body contains lots

Evidence cards. Mobile phones cause health problems.

Mobile phones produce microwaves

Microwaves make water molecules move faster

The body contains lots of water

Some people who live near mobile phone masts complain of headaches

Research shows that there is an increased chance of users getting tumours in the part of brain next to the ‘phone’ ear.

Microwaves can penetrate the skull of a young child.

A small proportion of users develop cancer.

Raised temperatures destroy brain cells

Medical scans show that microwaves affect the brain.

Page 2: Evidence cards. Mobile phones cause health problems. Mobile phones produce microwaves Microwaves make water molecules move faster The body contains lots

Evidence cardsExercise is good for you

Exercise speeds up your heart rate

Exercise makes you breathe faster

People who exercise regularly

have a lower resting heart rate

Exercise strengthens the heart muscle

Overweight people are more likely to have heart attacks

My games teacher says it is

Exercise makes you feel better

People who exercise daily live longer, on average

Most athletes are slim

Joggers can suffer heart attacks when they are running

People who exercise have greater muscle

mass

Exercise reduces your chances of

heart disease

Page 3: Evidence cards. Mobile phones cause health problems. Mobile phones produce microwaves Microwaves make water molecules move faster The body contains lots

Evidence cards.Carbon dioxide causes global warming.

More carbon dioxide is being produced and the world is warming up.

Venus is very hot and it has a thick carbon dioxide atmosphere.

Animals breathe out warm carbon dioxide and other gases.

Hot carbon dioxide is given out when fossil fuels are burned

Carbon dioxide turns limewater milky

Carbon dioxide reacts with water to form carbonic acid.

Experiments show that carbon dioxide retains heat more than oxygen

Methane contains carbon and it has been proved that methane is a greenhouse gas

The ozone hole above the Antarctic is getting bigger

Page 4: Evidence cards. Mobile phones cause health problems. Mobile phones produce microwaves Microwaves make water molecules move faster The body contains lots

Sunlight increases the number of organisms in a food chain

Energy stored in living things is passed on when they are eaten

Lots of animals live in Africa.

My teacher says it’s true so the chances are that it’s right.

Plants are an essential part of food chains

There aren’t many living things at the North Pole.

More animals live on the equator than at the North Pole

More people live in sunnier climates.

Sunshine provides energy for plants to make food.

Plants don’t thrive in shady areas.

Page 5: Evidence cards. Mobile phones cause health problems. Mobile phones produce microwaves Microwaves make water molecules move faster The body contains lots

Evidence cards Smoking is bad for you

More smokers than non-smokers die of heart disease.

Cigarettes make your breath smell.

Cigarettes contain nicotine.

Smoking can make you feel relaxed.

The Government taxes cigarettes and makes them expensive.

A significant proportion of people who smoke develop lung cancer.

Women who smoke have a greater chance of having low birth-weight babies.

Increasing numbers of young people are beginning to take up smoking.

Smoking is banned from many public places such as restaurants and offices.

Nicotine is addictive

Many people who smoke develop bronchitis

Photographs show that sticky tar forms in the lungs of smokers

Page 6: Evidence cards. Mobile phones cause health problems. Mobile phones produce microwaves Microwaves make water molecules move faster The body contains lots

Evidence cardsThe Earth rotates on its axis

The Moon moves across the sky

It’s cold at nightDaylight hours are

shorter in the winter

Hong Kong has dawn 8 hours before the UK

It’s warmer at the equator than at the poles

It takes 365 ¼ days for the Earth to orbit

the Sun

The Sun rises in the East and sets in the

West

Water goes down the plughole clockwise in

the Northern hemisphere but anti-clockwise in the

Southern Hemisphere

A day is 24 hours long

Stars move across the night sky in a circular

path

Some birds fly south in winter

On a midsummer’s day there are 12 hours of day and 12 hours of

night

Page 7: Evidence cards. Mobile phones cause health problems. Mobile phones produce microwaves Microwaves make water molecules move faster The body contains lots

Evidence cardsMatter is made of particles

Atoms have been seen very powerful scanning tunnelling

microscopes

Smoke particles move around in a random way when you watch them

under a microscope

Balloons will pop if they get too hot

Gases can be squashed into

smaller volumes

Most materials expand when heated

Balloons inflate when you blow air

into them

You can see air particles in bright

sunlight

I’ve seen a picture of particles in my science book

Air resistance increases when you

go faster

Salt dissolves in water

All matter can be separated into smaller bits

Sand is matter and sand is made of

particles

Page 8: Evidence cards. Mobile phones cause health problems. Mobile phones produce microwaves Microwaves make water molecules move faster The body contains lots

Evidence cardsThe Earth is round

When a ship sails towards you the mast appears first.

If you travel west you eventually return to the place you started from.

The Earth looks spherical when viewed from space.

The Earth has a magnetic field

My textbook states that the earth is round

The sun travels across the sky in the same direction every day

The shadow of the earth during a lunar eclipse is round.

The moon and sun are round so the earth is almost certainly round

Toy shops sell globes of the earth.