It's defined as the study of the composition of matter and the changes that matter undergoes.

• Science 🥼

• Matter ⚛

• Chemistry 🧪

• Biology 🧬

Which of the following are (or is) considered matter?

• Light 💡

• Salt 🧂

• Your best friend 🙋🏼

• Time ⌛️

• Pure water 💦

If you were an expert chemist, which of the following areas would be suitable for you and directly related to your area of expertise?

• Developing solutions to avoid spilling toxic waste in the environment.

• Understanding about fertilizers and other chemicals to keep in good shape the grass at an NFL stadium.

• Diagnosing patients with a specific type of sickness at a hospital.

• Designing fashion for your favourite artist at the next Met Gala

• Investigating in the lab ways to synthesize a new type of oil for high performance cars at the Formula One.

Select one or more physical properties from the list below:

• Density

• Flammability

• Reactivity

• Radioactivity

• Cutting your hair

Select one or more chemical properties from the list below:

• Density

• Flammability

• Reactivity

• Radioactivity

• Cutting your hair

Select one or more chemical changes from the list below:

• Oxygen rusting a piece of metal

• Folding cardboard into triangles

• Melting aluminium foil

• Radioactivity

• Burning a candle

Select one or more physical changes from the list below:

• Oxygen rusting a piece of metal

• Folding cardboard into triangles

• Melting aluminium foil

• Radioactivity

• Burning a candle

True or false: an unexplainable change in color might suggest a chemical change has occurred.

• True

• False

True or false: a change in which the identity of the substance is the same is called a chemical change.

• True

• False

Provide three examples of elements. Please, separate them by a comma.