Ms. Sharon DeJohn » Science 7

Science 7



Chemical and Physical Changes

There is a difference between physical and chemical changes. the physical change is a change in the appearance of the matter without changing its internal structure while in the chemical change, the structure and the appearance of the matter are changed.

Physical and Chemical Change Examples

In this video I will go over physical and chemical changes. In each clip or picture try to figure out if you are witnessing a physical or chemical change A physical change involves a change in physical properties only. Examples include change in volume, size, shape, phase changes like solid to a liquid And a solution that can be separated.

MooMooMath and Science Physical and Chemical Changes

In this video I would like to talk about physical and chemical changes. Physical changes are changes in appearance only. A new substance is not created and new chemical bonds are .not formed or broken.

Physical and Chemical Changes: Chemistry for kids-Free

In chemistry, there are two main types of changes - physical changes and chemical changes. Physical changes affect the shape, size, and form of a substance. Chemical changes changes occur when the particles of two or more substances are rearranged to form a new substance.

Reason for the seasons- Rebecca Kaplan

Why do some regions experience full-time heat while others are reckoning with frigid temperatures and snow? And why are the seasons reversed in the two hemispheres? Rebecca Kaplan explains how the shape of the Earth's orbit around the Sun and the Earth's tilt on its axis affect the amount of sunlight each region receives.

Ocean's Tides Explained

8.7 A Day /Night & Season Changes Ocean’s tides are explained in this video: How the tides work? Why the oceans experience two high tides and two low tides each day?

Lunar Cycle, Why the Moon Change Shapes, 8 Phases of The Moon, Learning Videos For Children

TEK: 8.7 B The Lunar Cycle A crescent and waxing gibbous will run you around in circles. Moon Phases: new Moon, waxing crescent, first quarter, waxing gibbous, full Moon, waning gibbous, third quarter, waning crescent.

0:37 / 3:05 Evolution by Natural Selection - Darwin's Finches | Evolution | Biology | FuseSchool

The study of finches led to the development of one of the most important scientific theories of all time.

Dichotomous Keys: Identification Achievement Unlocked

"Join the Amoeba Sisters in discovering how to use a dichotomous key to identify organisms. This video also touches on the importance of scientific names"

Dichotomous Keys Reading

Students learn how to use the dichotomous key naming the leaves with its scientific names.