# Resources tagged with: Chemistry

### There are 22 results

Broad Topics >

Cross-curricular Contexts > Chemistry

##### Age 14 to 16

Challenge Level

Work out the numerical values for these physical quantities.

##### Age 14 to 18

Challenge Level

Estimate these curious quantities sufficiently accurately that you can rank them in order of size

##### Age 14 to 16

Challenge Level

Get some practice using big and small numbers in chemistry.

##### Age 14 to 16

Challenge Level

Many physical constants are only known to a certain accuracy. Explore the numerical error bounds in the mass of water and its constituents.

##### Age 14 to 16

Challenge Level

Use your skill and knowledge to place various scientific lengths in order of size. Can you judge the length of objects with sizes ranging from 1 Angstrom to 1 million km with no wrong attempts?

##### Age 14 to 18

An introduction to a useful tool to check the validity of an equation.

##### Age 14 to 18

Challenge Level

This is the area of the advanced stemNRICH site devoted to the core applied mathematics underlying the sciences.

##### Age 14 to 18

Challenge Level

chemNRICH is the area of the stemNRICH site devoted to the
mathematics underlying the study of chemistry, designed to help
develop the mathematics required to get the most from your study. . . .

##### Age 14 to 18

Challenge Level

Explore the distribution of molecular masses for various hydrocarbons

##### Age 14 to 16

Challenge Level

Which dilutions can you make using 10ml pipettes and 100ml measuring cylinders?

##### Age 14 to 16

Challenge Level

Which dilutions can you make using only 10ml pipettes?

##### Age 14 to 16

Challenge Level

Which exact dilution ratios can you make using only 2 dilutions?

##### Age 14 to 16

Challenge Level

Can you fill in the mixed up numbers in this dilution calculation?

##### Age 14 to 18

Challenge Level

Investigate the molecular masses in this sequence of molecules and deduce which molecule has been analysed in the mass spectrometer.

##### Age 14 to 18

Challenge Level

Find out why water is one of the most amazing compounds in the
universe and why it is essential for life. - UNDER DEVELOPMENT

##### Age 14 to 18

Challenge Level

An introduction to bond angle geometry.