Grade 5 Science: Plants and Energy
Free Grade 5 Science unit on Plants and Energy: 10 lessons in order, starting with Plant structures. Includes practice questions and answer keys.
10 lessons in this unit
Plant structures
Learn the structures of a flowering plant, roots, stem, leaves, flowers, fruits and seeds, and how the shape of each part suits its job.
Lesson 2Plant growth
Learn the stages of plant growth from germination to seedling, adult plant, flowering and seed, the conditions seeds need, and how to measure growth over time.
Lesson 3Photosynthesis introduction
Learn that plants make their own food by photosynthesis using light, water and carbon dioxide to make sugar and oxygen, and why this makes plants producers.
Lesson 4Sunlight and plant growth
Learn how the amount and direction of light affect plant growth, investigate shade and light in a fair test, and explain phototropism in simple terms.
Lesson 5Water and minerals
Learn how roots absorb water and minerals, how xylem carries them up the stem to leaves, and investigate water movement using coloured water and celery.
Lesson 6Gas exchange introduction
Learn that leaves exchange gases through tiny pores called stomata, taking in carbon dioxide and releasing oxygen, and that plants also respire day and night.
Lesson 7Plant food production
Learn how glucose from photosynthesis is used for energy, converted to starch for storage, and used to make fruits, seeds and roots that humans eat, and test a leaf for starch safely.
Lesson 8Plants in food chains
Learn that plants are the base of food chains and food webs, trace energy from the Sun through plants to animals, and draw simple pyramids of numbers.
Lesson 9Plant adaptations
Learn how plants are adapted to their habitats, such as desert cacti, floating water lilies, rainforest drip tips and mangrove roots, and match features to survival.
Lesson 10Plants and environmental sustainability
Learn how plants protect soil, cool the air, store carbon and support biodiversity, and explore sustainable actions such as planting trees, composting and responsible farming.