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SCIENCE – MILESTONE 3 their hardness, solubility, conductivity (electrical and To work scientifically • Plan enquiries, including recognising and controlling thermal), and response to magnets. variables where necessary. • Understand how some materials will dissolve in liquid • Take measurements, using a range of to form a solution and describe how to recover a scientific equipment, with increasing accuracy substance from a solution. and precision, taking repeat readings where appropriate • Use knowledge of solids, liquids and gases to decide • Record data and results of increasing complexity using how mixtures might be separated, including through scientific diagrams and labels, classification keys, tables, filtering, sieving and evaporating. bar and line graphs • Give reasons, based on evidence from comparative and • Use test results to make predictions to set up further fair tests, for the particular uses of everyday materials, comparative and fair tests. including metals, wood and plastic. • Report and present findings from enquiries, including • Demonstrate that dissolving, mixing and changes of oral and written explanations of results, explanations state are reversible changes. involving causal relationships, and conclusions. • Explain that some changes result in the formation of • Identify scientific evidence that has been used to new materials, and that this kind of change is not usually support or refute ideas or arguments. reversible, including changes associated with burning, oxidisation and the action of acid on bicarbonate of soda. Biology - To understand animals and humans • Identify and name the main parts of the human Physics - To understand movement, forces and circulatory system, and explain the functions of the heart, magnets blood vessels and blood (including the pulse and • Explain that unsupported objects fall towards the Earth clotting). because of the force of gravity acting between the Earth • Recognise the impact of diet, exercise, drugs and the falling object. and lifestyle on the way human bodies function. • Identify the effect of drag forces, such as air resistance, . Describe the ways in which nutrients and water are water resistance and friction that act between moving transported with animals, including humans surfaces. • Understand that force and motion can be transferred through mechanical devices such as gears, pulleys, levers Biology – To investigate living things • Describe the differences in life cycles of a mammal, an and springs. amphibian, an insect and a bird • Describe the life process of reproduction in some Physics - To understand light and seeing plants and animals. • Understand that light appears to travel in straight lines. • Describe the changes as humans develop from birth • Use the idea that light travels in straight lines to explain to old age. that objects are seen because they give out or reflect light • Describe how living things are classified into broad into the eyes. . groups according to common observable characteristics Explain that we see things because light travels from and based on similarities and differences, including light sources to our eyes or from light sources to objects micro-organisms, plants and animals and then to our eyes . Give reasons for classifying plants and animals based on • Use the idea that light travels in straight lines to explain specific characteristics why shadows have the same shape as the objects that cast them Biology - To understand evolution and inheritance • Recognise that living things have changed over time Physics - To understand electrical circuits and that fossils provided information about living things • Associate the brightness of a lamp or the volume of a that inhabited the Earth millions of years ago buzzer with the number and voltage of cells used in the . Recognise that living things produce offspring of circuit. the same kind, but normally offspring vary and are • Compare and give reasons for variations in how not identical to their parents. components function, including the brightness of bulbs, . Identify how animals and plants are adapted to suit their the loudness of buzzers and the on/off position of environment in different ways and that adaption may switches. lead to evolution • Use recognised symbols when representing a simple circuit in a diagram Physics - To understand the Earth’s movement in space • Describe the movements of the Earth and other planets, relative to the Sun in the solar system . Chemistry – To investigate materials Describe the movement of the Moon relative to the • Compare and group together everyday materials based Earth . on evidence from comparative and fair tests, including Describe the Sun, Earth and Moon as approximately spherical bodies SCIENCE – MILESTONE 3 • Use the idea of the Earth’s rotation to explain day and night and the apparent movement of the Sum across the sky