OCR Gateway Core Science Unit 2 Revision

If a substance gains electrons, this is ...?

If a metal is easy to bend and shape, then it is said to be ...?

If organisms have an advantage, live longer & pass on the advantage to their offspring, it is.?

When metals react with the oxygen in the air, it is known as ...?

Rocks formed in volcanoes are called...?

Fertilisers in streams can cause algae to grow, blocking out sunlight, killing plants. This is?

Breeding together two animals from different species can produce a ...?

Species, such as lichen, that are only found growing where the air is clean are known as ...?

Which objects have very elliptical orbits?

The place where an organism lives is it's ...?

The outer layer of the Earth (crust and upper mantle) are known as the ...?

The binomial method of naming organisms is made up of which two classification groups?

A relationship between two animals, in which they both benefit, is called...?

In a power station, what is the missing step? Fuel - boiler - steam - .....?..... - generator

The opposite of an acid is a ...?

Which one of these do you not need to make cement?

The Haber process is used in the production of...?

The term used to describe two or more metals mixed together is...?

Which of these is not a type of nuclear radiation?

Which of these can be a source of heat in a power station?

Radiation which can knock electrons off atoms is known as ...?

"Shooting stars", or rocks that make it to the Earth's surface are called ?

Using South facing windows to allow buildings to warm up using the Sun's energy is a type of ?

Which of the following is not a way that energy is lost from a food chain?

What is the type of electricity produced when a coil of wire is moved in a magnetic field?

A diagram to show the total mass of organisms at each trophic level is called a ...?

Which of the following is the most ionising?

A reversible reaction is one that ...?

When an acid and base react they will produce a ...?

Light from distant galaxies is "red-shifted", this is evidence for what?

Bacteria that live in very hot springs are known as...?

Solar cells are made from layers of which substance?

What objects are mainly made from ice and dust?

Moving a wire in a magnetic field to generate an electrical current is known as the ..?

A thermal decomposition reaction is one where ...?

Which of the following is not a method of returning carbon back to the atmosphere?

What are the symbols of the 3 main essential elements in fertilisers?

Competition between members of the same species is known as?

Taking things from the environment, but leaving enough behind for the future is known as..?

The process used to purify copper is ...?

The apparatus used to either increase or decrease an electrical voltage is a ..?

How should high level radio-active waste be disposed of?

When a population grows at an ever increasing rate, it is called ...?

Which type of bacteria convert nitrates in the soil into nitrogen in the air?

Cosmic rays being deflected by the Earth's magnetic field cause what phenomenon?

Massive stars will turn into what after their red giant stage?

The method of sorting living things into different groups is called ...?

Which of the following is the most penetrating?

How do we think the Earth's Moon was formed?

In electrolysis, the positive electrode is called the ...?