Recursos educativos metals página 6

Mostrando resultados de 57

Self-assessment T10 08 - Machines and structures
EduBook Organización
2342 visitas
Complete the text with the correct words: A is an instrument that we use to make our work easier. We operate tools using our . Humans used , bones and sticks to make the first tools. These included…
Ver más
True / False. Tools
EduBook Organización
2327 visitas
Are these sentences true or false? A tool is an instrument that we use to make our work easier. We operate tools using our hands. Humans used rocks, bones and sticks to make the first tools. When humans…
Ver más
The propagation of heat
EduBook Organización
2294 visitas
Heat transfers from a hot object to a cold object by means of three mechanisms: conduction, convection and radiation. 6.1. Conduction Heat is transmitted through solid substances by conduction (figure…
Ver más
How did Neolithic people make metal objects?
EduBook Organización
2161 visitas
In the Metal Age, people who worked with metals were called smiths. They learnt to use fire and heat to make metal tools. They did this in the following way: Heating. The smiths heated the metal ore to…
Ver más
Tools and machines
EduBook Organización
1947 visitas
What is a tool? A tool is an instrument that we use to make our work easier. We operate tools using our hands. Humans used rocks, bones and sticks to make the first tools. These included axes, hammers…
Ver más
Unit 1: Matter and Materials
EduBook Organización
1767 visitas
Alloy (n): a homogeneous mixture made up of metals or of a metal and a non-metal. atom (n): the smallest unit of matter, composed of particles called protons, neutrons and electrons. boiling point (n):…
Ver más
Final self-evaluation 03 - The Earth's Crust
EduBook Organización
1766 visitas
Are the following sentences true or false? The Earth's outermost layer is called the crust. Ocean trenches are long, narrow depressions in the floor of the ocean. The most common elements in the…
Ver más