End of year test: science

What is the photosynthesis word equation?

carbon dioxide + water + sunlight -> oxygen and glucose.

What is the chemical equation of photosynthesis?

6CO2 + 6H2O ------> C6H12O6 + 6O2

What is a producer in a food web

It is the plant that produces or makes its own food.

Give an example of a producer in a food web

Bamboo

What is a primary consumer in a food web?

Primary consumers are herbivores, feeding on plants or algae.

Give an example of a primary consumer in a food web

Rabbit

What is a secondary consumer in a food web?

The organisms that eat the primary consumers

What is a tertiary consumer in a food web?

Tertiary consumers are animals that consume other animals to obtain nutrition from them.

What type of waves are sound waves

They are longitudinal

What pitch are high frequency sound waves?

They are high pitched

What pitch are low frequency sound waves?

They are low pitched

What is the volume of high amplitude sound waves?

They are loud

What is the volume of low amplitude sound waves?

They are quiet

What is the particle arrangement of a solid?

They are very close together and arranged in a regular way

What happens when solids are heated

Their particles do not get any bigger. They vibrate more which causes them to move apart.

What is the particle arrangement of a liquid?

They are arranged in a random way, and are close together.

What can liquid particles do?

The particles of a liquid have energy to break free of the forces of attraction between themselves.

What can you do if there are large spaces between liquid particles?

You can compress them.

What is the particle arrangement of gasses?

They are widely spaced and randomly arranged

What are the features of gas particles?

The hey can be easily compressed or squashed.

What can gas particles do?

The gas particles have energy to overcome the forces of attraction between themselves, they can move wherever they want.

How do gas particles move?

They move quickly in straight lines, colliding with each other and the walls of their container.

What is the space between gas particles?

Nothing

What are chemical reactions that release energy called?

They are exothermic.

What are chemical reactions that absorb energy called?

They are endothermic.

What do you use to measure friction?

Newtonmeter