How does the atom connect all concepts studied in grade 9 Science?

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Energy)

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Affordable and Clean Energy

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Light

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Chemcial/ionic bonding

Szerző: Yun Shan

How does the atom connect all concepts studied in grade 9 Science?

Living well

Humans and animals need four elements mainly to live which are oxygen, hydrogen, nitrogen, phosphorus

Conductors & insulators

Conductors allow the electric current to flow easily because of how the atoms are built. In comparison, insulators don't allow electric current to flow easily.

Light and the electromagnetic spectrum

The absorption of energy causes the electrons within the atoms to undergo vibrations.

Evolution of stars

At one stage during a evolution of a star, a star is born when atoms of light elements are squeezed under enough pressure for their nuclei to undergo fusion

Formation of stars

At one stage during a formation of a star, the star fuses helium to form heavy elements, such as carbon and iron.

Current electricity

Electrons are the tiny charged parts of atoms that travel in the electric current beacuse electrons are mobile and current is measured as rate of flow of electrons.

Circuits

Atoms contain protons, neutrons, and electrons. Electricity is made when an outside force causes the electrons to jump from atom to atom.

Static electricity

Electrons are tiny charged parts of atoms, if there is too many charged electrons it is called static electricity.

Sustainable agriculture

Agriculture is all about cultivating the soil, growing crops and raising livestock, all are connected to atoms.

Photosynthesis & cellular respiration

Glucose is a sugar made of 6 carbon atoms, 6 oxygen atoms, and 12 hydrogen atoms.

Relationships between organisms

All organisms are made up of different atoms. Parasitism is when a organism (parasite) lives on or in another organism.

Biotic and abiotic

Biotic factors like humans, plants, animals are all made up of atoms as well as abiotic factors like soil, minerals, sand.

Ecosystems

All organisms are made of a combination of atoms. Plants, insects, animals, soil, minerals, etc. are all made up of atoms.

Physical and chemical properties and changes

The positive charge of the nucleus attracts the negatively charged electrons.

Bohr-Rutherford diagrams

The diagrams are simple atomic models that show the number of electrons in each shell of an atom.

Subatomic particles

All atoms are made up of three main particles, which are protons, neutrons, and electrons.

Periodic Table

Everything on the periodic table are elements that are made up of atoms

Matter & energy

Matter is the things we see, which are made up of atoms, energy is a property that matter also has.