physical changes
Chemical changes
Life science
Electricity
Magnet
100

making lemonade is 

 physical change

100

boiling sugar to make caramel

 chemical change

100

what are the four branches of life science

 ecology,botany,zooology and genetics

100

how does Electricity work

Electricity is the movement of electrons between atoms

100

What produces a magnetic field.

magnetic field is invisible but is responsible for the most notable property of a magnet

200

what is a physical reactions 

 a reaction in which a change to the physical properties of a material or substance occurs.

200

what is a chemical change in a short sentence

  any change that causes a new substance to be formed

200

is life science the same as biology

Biology is the scientific study of life and living organisms, whereas life science is a broader term that encompasses any scientific study of life


200

what is electricity made of 

he electrons in the shell closest to the nucleus have a strong attraction to the protons. Sometimes the electrons in an atom's

200

All magnets have north and south poles how does it attract

When you rub a piece of iron along a magnet, the north-seeking poles of the atoms in the iron line up


300

is crushing a physical changes 

obvious physical changes but to restore the original piece of paper or rock is difficult.


300

what is an chemical change experiment

bottle balloons

300

what branch of science is life science

biology, natural

300

how is electricity created

with steam turbines using fossil fuels, nuclear, biomass, geothermal, and solar thermal energy.

300

how do magnets work without touching

things made of iron, nickel or cobalt that are located within it. (Because its interior acts like a magnet, the Earth is surrounded by a magnetic field that affects things made of.

400

what are 7 physical changes 

melting, transition to a gas, change of strength, change of durability, changes to crystal form, textural change, shape, size, color, volume and density.

400

is popping popcorn 

popping popcorn is not a chemical reaction

400

is life science medical

Biology, medicine and agriculture are the most obvious examples of the discipline

400

what is the main source of electricity

 fossil fuel 

400

how does magnets repel

magnets will be pushed in the direction that decreases the amount of stored-up energy. That is, they are forced apart (repelled)

500

what is a non physical change

 burning wood

500

is milk going sour a chemical change

original substances present in milk lose their nature and identity and form new chemical substances.


500

is nursing a life science 

Nursing is a basic science, just like biology


500

is electricity renewable  

Electricity can be both a renewable and nonrenewable resource. Whether electricity is renewable or nonrenewable depends on how it was generated.

500

what happens when 2 magnets are forced 

the magnetic field lines are perturbed, just as happens for electric field lines when two electric charges are brought together.

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