9TH - SCIENCE

It is a long and muscular tube in our body.

• Digestive system

• Digestive tract

• Large intestine

This is not an accesory gland:

• Liver

• Pancreas

• Salivary Glands

• Stomach

It is always converted in the form of heat, light or sound.

• Energy

• Power

• Force

Combustion is an example of

• Reactants

• Endothermic reaction

• Exothermic reaction

When we put an ice cube in a liquid, the ice absorbs the heat to pass to a liquid state.

This is an example of...

• Exothermic Reaction

• Endothermic Reaction

• Over Reaction

The law of conservation of mass establish that...

• Total mass of reactants is equal to the total mass of the products.

• Total numbers of atoms is the same in products and reactants.

• Number of atoms and mass of the reactans are the same in products.

Substances that react together in a chemical reaction are:

• Atoms

• Products

• Reactants

It describes the amount of work.

• Force

• Power

• Energy

Work is measured in newtons and force is measured in joules.

• True

• False

• None

Mass, height and gravitational field strength are factors that affect an object's GPE.

• True

• False

• None