21 - 23 van 23 bronnen weergeven

Scale of cells

Even though molecules, proteins, viruses, and cells are all tiny, there are significant size differences between them. The diameter of a water molecule is roughly 0.28 nanometers. The diameter of the protein hemoglobin is roughly 5 nanometers. The diameter of the HIV virus is roughly 120 nanometers. A red blood cell is 6-8 micrometers.

Onderwerp en thema
Form 1
Biology
Cell structure and organisation
Concept of cells
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2015
Schepper/Auteur
Sal Khan
Trefwoord
Cells

Solving Algebraic Fractions

This video explains how to solve algebraic fractions.

Onderwerp en thema
Form 1
Mathematics
Fractions
Operations on fractions
Type bron
Video
Taal
English
Uitgever
FuseSchool Global Education
Publicatiedatum
2017
Schepper/Auteur
FuseSchool Global Education
Trefwoord
Fractions
Algebraic fractions

Sum of Mixed Numbers

Use two methods to find the sum of mixed numbers: improper fractions and mixed numbers

Onderwerp en thema
Form 1
Mathematics
Fractions
Proper, improper and mixed numbers
Type bron
Video
Taal
English
Uitgever
Mathispower4u
Publicatiedatum
2016
Schepper/Auteur
Mathispower4u
Trefwoord
Mixed numbers
Improper fractions