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  • Created by: Lynx22
  • Created on: 19-01-21 11:29
How are leaves adapted for photosynthesis?
They are green because they contain lots of chlorophyll to absorb sunlight.

They have a large surface area to maximise the amount of sunlight they can absorb.

They are thin, allowing easy diffusion of gases into and out of the leaf.
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What is the word equasion for photosythasis
carbon dioxide + water —> glucose + oxygen + water
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Pollination is...
Pollination

During plant reproduction, pollen grains need to move from the anther of one flower to the stigma of another flower. This is called pollination. Insects can pollinate flowers, and so can the wind. Insect-pollinated flowers are different in st
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How is fertilisation in plants?
Seeds and fruit

A pollen grain starts to grow if it lands on the stigma of a flower of the correct species. A pollen tube grows through the tissues of the flower until it reaches an ovule inside the ovary. The nucleus of the pollen grain (the male gamete
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Investigating dispersal
Investigating dispersal

Seeds dispersed by the wind are easier to investigate than seeds dispersed by other methods. For example, you could release sycamore seeds and measure the distance they travel. Factors that could affect the distance travelled by a
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The periodic table
The periodic table

All the different elements are arranged in a chart called the periodic table. A Russian scientist called Dmitri Mendeleev produced one of the first practical periodic tables in the 19th century.
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How they are grouped
Making predictions using the periodic table

Groups in the periodic table contain elements with similar chemical properties. But there are usually trends in properties that allow us to make predictions.
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Metals-Iron, magnesium and gold
Iron, magnesium and gold are examples of metal elements. Metals have properties in common. They are:

shiny, especially when they are freshly cut
good conductors of heat and electricity
malleable (they can be bent and shaped without breaking)
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Metals- others
Most metals also have other properties in common. They are:

solid at room temperature, except mercury
hard and strong
they have a high density
they are sonorous
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How is sound produced?
When you bang a drum its skin vibrates. The harder you bang, the bigger the vibrations. The vibrating drum skin causes nearby air particles to vibrate, which in turn causes other nearby air particles to vibrate. These vibrating particles make up a sound w
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How does sound travel?
Sound waves travel at 343 m/s through the air and faster through liquids and solids. The waves transfer energy from the source of the sound, e.g. a drum, to its surroundings. Your ear detects sound waves when vibrating air particles cause your ear drum to
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Reflection of sound
Surfaces reflect sound waves:

Hard surfaces reflect sound well, making echoes.

Soft surfaces, like curtains and carpets, reflect very little sound. They absorb the sound instead, so there are no echoes.
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Other cards in this set

Card 2

Front

What is the word equasion for photosythasis

Back

carbon dioxide + water —> glucose + oxygen + water

Card 3

Front

Pollination is...

Back

Preview of the front of card 3

Card 4

Front

How is fertilisation in plants?

Back

Preview of the front of card 4

Card 5

Front

Investigating dispersal

Back

Preview of the front of card 5
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