For this practical task students make observations about the effect of coloured lights on different coloured objects. Students then draw some conclusions about their findings.
This practical task consists of two parts. Students test various substances with hydrochloric acid, iodine solution, and universal indicator, and then complete a table with their observations. The second part requires students to identify four unknown solids using their tests and results from part one.
For this practical task students make a prediction about which lot of ice will melt first. Then students record their observations and explain why one lot of ice melted faster than the other.
Task: Use information about differences between moths and butterflies to decide which category examples belong to, and identify what evidence was used. Assessment focus: observation, using evidence.
Students demonstrate their understanding of a graph showing the relationship between the cost of different bottles of drink and the amount each bottle contains. They then explain which bottle of drink is the best value for money paid.