ExamForgeGeneral Certificate of Secondary Education
Combined Science
Combined Science Daily Practice (Higher)
Higher Tier
Time Allowed
45 min
Total Marks
13
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Sections
1
Instructions
- • Use black ink or black ball-point pen. Draw diagrams in pencil.
- • Answer all questions in the spaces provided.
- • Do all rough work in this question paper. Cross through any work you do not want to be marked.
- • Show all your working out — marks may be awarded for correct working even if the answer is wrong.
Information
- • The total mark for this paper is 13.
- • The marks for each question are shown in brackets — use this as a guide as to how much time to spend on each question.
- • Questions labelled with an asterisk (*) are where the quality of your written communication will be assessed.
Answer all questions in the spaces provided.
1
Explain why plants need nitrate ions from the soil.
2
A student tests four solutions with universal indicator. Results: A = red, B = green, C = purple, D = orange. (a) Which is neutral? (b) Which is a strong alkali? (c) Put them in order of pH, lowest first.
3
A 100W light bulb is left on for 5 hours. Electricity costs 30p per kWh. (a) Calculate the energy used in kWh. (b) Calculate the cost.
4
Describe the process of mitosis and explain why it is important.
End of Questions
Total marks: 13
ExamForge Daily PracticeExamForge · GCSE Combined Science