Exothermic and endothermic reactions
This lesson, students will define exothermic and endothermic reactions and give examples of each.
Unit Overview: Energy changes (HT)
National Curriculum
For next step we recommend the unit: Energetics and rates.
Lessons:
8 lessons
Required Practical: Temperature change (Part 1)
This lesson, students will identify variables affecting the temperature change in a reaction, then process data and display these appropriately.
Required Practical: Temperature change (Part 2)
This lesson, students will draw conclusions and explain the changes in temperature in experiments. Students will then evaluate the equipment and data and make suggestions for improvements.
Writing a method to test a hypothesis
This lesson, students will write a method to test a given hypothesis.
Energy level diagrams
This lesson, students will draw energy level diagrams for exothermic and endothermic reactions. Students will identify activation energy and overall energy change in energy diagrams. We will also explain why reactions are endothermic or exothermic in terms of bond breaking and bond making.
Calculating bond energies
This lesson, students will calculate bond energy values and use them to predict whether a reaction will be exothermic or endothermic. Students will relate bond energies to the correct part of energy level diagrams.
Review combined
This lesson will review the Combined Science content of this unit.
Case study
This lesson will look at the lives and work of Roger Billings and Saiful Islam.
Units in Combined Science
- Cell biology (HT)
- Atomic structure and periodic table (HT)
- Particle Model of Matter (HT)
- Organisation (HT)
- Bonding, structure and the properties of Matter (HT)
- Energy (HT)
- Infection and response (HT)
- Quantitative Chemistry (HT)
- Electricity (HT)
- Bioenergetics (HT)
- Chemical changes (HT)
- Atomic Structure (HT)
- Ecology (HT)
- Energy changes (HT)
- Magnetism (HT)
- Cell biology (FT)
- Atomic structure and periodic table (FT)
- Particle Model of Matter (FT)
- Organisation (FT)
- Bonding, structure and the properties of Matter (FT)
- Energy (FT)
- Infection and response (FT)
- Quantitative Chemistry (FT)
- Electricity (FT)
- Bioenergetics (FT)
- Chemical changes (FT)
- Atomic Structure (FT)
- Ecology (FT)
- Energy changes (FT)
- Magnetism (FT)
- Homeostasis and response (FT)
- The rate and extent of chemical change (FT)
- Forces (FT)
- Inheritance, variation and evolution (FT)
- Organic Chemistry (FT)
- Waves (FT)
- Chemical analysis (FT)
- Chemistry of the atmosphere (FT)
- Using Resources (FT)
- Homeostasis and response (HT)
- The rate and extent of chemical change (HT)
- Forces (HT)
- Inheritance, variation and evolution (HT)
- Organic Chemistry (HT)
- Waves (HT)
- Chemical analysis (HT)
- Chemistry of the atmosphere (HT)
- Using Resources (HT)