A sunflower plant is a dicotyledon that has leaves with network-life veins and a woody stem

The pull force and push force between electric charges are called

The flow of ______________ charges from the clouds to the ground is called lightning

Resistance is the characteristics of material that opposes the flow of electrical charges through it.

The sound of a car horn is produced by the ______________ energy

A moving airplane has a large amount of _______________ energy due to its large mass and fast velocity

When it is switched on, a toaster transforms _______________energy into _________________ energy

A gas stove converts ________________ energy into _____________ energy to cook food

The two planets which do not spin in the same direction as Earth are Venus and Uranus.

The Sun and the moons are orbitting the planets in the solar system.

The further the planet from the Sun, the longer the planet orbits around the Sun

The larger the size of solute particles, the higher the rate of solubility.

There are millions of galaxies in our universe

A star is born after a supernova explosion.

MIcroorganisms can only penetrate the skin if we have cuts or are injured

Wax in the ears can destroy microorganisms

The body second barrier of defense is the mucous membrane that coats the digestive tract

Antibodies are proteins produced by the white blood cells

Antigen is found in pathogens, toxins and red blood cells

Conduction is a flow of heat from a warm area to a cold area through a liquid

The flow of fluids from a warm area to a cold area is called convection

In convection, fluid that is cold and more dense will rise

Heat can move through empty space or vacuum

The greater temperature difference between two substances, the faster heat flows

Heat will continue to flow until thermal equilibrium is achieved

Cardiovascular diseases are infectious