Science G5 Summary - Semester 1

Engine is a device that converts energy from a natural source into useful work. What is the force of attraction that exists between any pair of objects called gravitational force

Heat energy resists motion and is also known as friction. When an object moves against a surface with friction, mechanical energy is transformed into heat. Chemical energy is stored in the bonds that hold molecules and chemical compounds together. Boiling point is the temperature at which a substance changes from a liquid into a gas. Combustible is the type of substances in gasoline, oil, coal, and wood. The ice is lighter than liquid water because it's less dense. Contact force occurs when one object pushes against another. We can see and feel the light and heat energy. Kinetic energy is the energy of motion.

Chromosphere is the atmosphere of the sun.

Lunar eclipse happens when the moon travels through the Earth's shadow. The air is composed of 21% oxygen, 78% nitrogen. Troposphere is the layer of the atmosphere is closest to the Earth and where all weather occurs. Ozone layer is the layer in the stratosphere helps protect the Earth from ultraviolet rays. Mesosphere helps protect the Earth from meteoroids. The topmost layer of the atmosphere is Exosphere.

Meteoroids are small solid pieces of rocky debris traveling through space. The average distance from the Earth to the Sun is approximately 93 million miles (150 million kilometers). Meteorologist is the scientist who studies the weather. The greenhouse effect prevents the Earth's heat from escaping easily into space.

Evening fog is not a type of fog. The three ingredients in the cloud recipe are rising air, water vapor, and dust. The mountains cause air to rise upward, often forming clouds. Altocumulus is the type of cloud described as patchy, puffy, and bumpy, found at medium heights in the sky. Fog is a type of cloud that stays near the ground and appears as a low layer cloud. Cumulus is described as a small, light, puffy, and white cloud seen in good weather when the sun shines bright. Cumulonimbus is the type of cloud that brings thunderstorms, heavy rainfall, and hail on hot summer days. Sleet is type of the precipitation formed by the freezing of raindrops.

What makes a chameleon distinct is its ability to change color to match its surroundings. The unique thing about a flounder is that it has two eyes on one side of its head. A mud puppy never leaves the water, which distinguishes it from salamanders. Which Ostrich is the bird that considered the largest in the world. The characteristics of a hummingbird include a specialized beak and tongue, rapid wing beats, a large heart and strong muscles, and small size. The Komodo dragon is distinguished by its size and habitat in Indonesia.