Welcome to the Science Teacher’s blog

This is where high school students and teachers can find science notes and revision worksheets. Students can also find how to study better tips and study planners to keep track of their self study and revision.

Lessons

Class 7: Sound

•Sound is a vibration we can hear. •A vibrating object makes sound •Sound travels through air. It travels more quickly through solids than liquids or gases

Class 7 - Atoms, Elements & Compounds

Elements are the building blocks of all matter. The Periodic Table of Elements show all the 118 elements that make up all matter on Earth. Each element is made up of its own special type of atom.

Class 7 Ecosystems & Variation

Levels of organisation: An ecosystem is a community of living organisms (plants, animals and microbes) in relation with the non-living components of their environment (things like air, water and mineral soil), interacting as a system.

Class 7: Fitness

•Being fit can be defined as the ability of a body to cope with all the demands of its lifestyle. •Fitness is made up of four factors: 4 S-factors:

SI Units

SI units are an International System of units that are recognized and used in calculations by scientists world wide. Fundamental SI Units Derived units (from the fundamental units)

Class 7: Forces

•A force is a push or pull on a body. •Force causes motion: change in speed, direction, shape or size. •SI Unit of Force: Newton : N Types of forces:

Class 7 - The Particle Theory

The Particle theory formed due to hypothesis supported by evidence. The Particle Theory states that: All matter is made up of tiny particles The particles are moving all the time There are forces of attraction holding the particles together These forces vary in strength in different states of matter.

Class 7: Electricity

An electric circuit is a path for electric charge (electrons) to flow along. Circuit Symbols Series and Parallel Circuits In a series circuit, all circuit components are connected in one single loop.

Class 7: Acids and Bases

Acids are substances turn litmus paper red and have a pH of less than 7. Alkalis are substances that turn litmus paper blue and have a pH more than 7.

Class 7 Reproduction

All living things make more of themselves by reproduction. Fertilization Fertilization is the fusion of the male and female cell nuclei to form a zygote. Adaptations of male and female gametes for fertilization Sperm cells have these adaptations:

Class 7: Energy & Changes

Energy from food Energy is measured in Joules. We get energy from food. Energy in foods is measured in kiloJoules. It is also measured in kilo Calories. 1 kCal = 4 kJ Different people have different energy requirements per day:

Class 7: Mixtures and their Separation

Matter mainly exists as a mixture. A mixture is made up of two or more components physically intermixed. Types of Mixtures 75% of the Earth is water in which many different substances can dissolve making it become a solution

Class 7: Cells, Tissues, Organs and Organ Systems

A cell is the smallest unit of life. Cells of the same type make a tissue. Different tissues make up an organ. Different organs work together in organ systems. Many organ systems make up a living thing – an organism.

Research

Sakina Huzeifa Tayabali (2016). An Investigation on the Effect of Student Curiosity on the Retention of Subject Matter.

PDF

Sakina Huzeifa Tayabali

Science Teacher

MSB Educational Institute Nairobi, Kenya

About Me

I have 7 years of experience in teaching Grade 7, 8 and 9 students biology, chemistry and physics. I give importance to planning well for my lessons and conducting them using a variety of teaching methods and resources. I aim to make my students understand the subject content so that they can be able to apply it to real life.

Download my resumé.

Education

B.Ed. in Biology and Chemistry
Catholic University of Eastern Africa – Langata Campus, Nairobi Bogani East Road, Nairobi, Kenya

Contact

sakinatayabali2401@gmail.com
Nairobi, Kenya