Measurement What kinds of things can you measure

Measurement

What kinds of things can you measure? Make a list. 1. 2. 3. 4. 5. 6. Height Weight (Mass) Distance ………………… Are any things on your list similar to each other, can you group them? ?

Science Differentiation in action Important measurements include: Time - …. . Length - Distance between two points Area - Amount of surface Volume - Amount of space an object takes up Mass Amount of matter in an object - Temperature - How hot or cold something is

Science Differentiation in action Units What are they? ? Standard we use for comparing measurements

Science Differentiation in action Long, long ago… Length: Cubit: elbow to tip of finger Span: thumb to little finger Why do some people use miles and inches and other people use centimetres and kilometres? ?

Science Differentiation in action Units Standard Internationale S. I. unit S. I. is the scientific unit used by scientists and engineers across the world

Science Differentiation in action What instrument do we use to measure temperature?

Science Differentiation in action What is the unit for temperature?

Science Differentiation in action How do you measure mass? Kilograms (kg) Mass is measured in ________

Science Differentiation in action What unit do we use to measure time? seconds S. I. unit for time is _____

Science Differentiation in action How can we measure length? • Ruler or metre stick • Opisometer • Trundle wheel • Callipers • Vernier callipers metres (m). Length is measured in _____

Science Differentiation in action What is the unit for length? Kilometres (km) = 1000 m Metre (m)= 100 cm Centimetre (cm) = 10 millimetres (mm)

Science Differentiation in action What units do we use for measuring very long distances?

Science Differentiation in action What do we use to accurately measure very short distances?

Science Differentiation in action Remember! Measurement Length - Distance between two points Units m Time Temperature Mass - Amount of matter in an object kg

Science Differentiation in action Question to think about! What would it be like to live in a world without measurement?

Science Differentiation in action What do we use to measure curved lines

Science Differentiation in action How can we measure area? Regular shape Use a ruler to measure the length of each side. Multiply one side by the other to find the area. l b Irregular shape Use graph paper. Draw around the object and then count the squares inside the lines. metres squared (m 2). Area is measured in_________ Area = l x b You must know the area of each square on the graph paper.

Science Differentiation in action How can we measure volume? Regular object Use a ruler to measure length, breath and height. l b h Multiply length by breath by height. Irregular object or liquid Use a measuring cylinder. How? metres cubed (m 3). Volume is measured in ________ (v = l x b x h)

Science Differentiation in action Remember! Measurement Units Length - Distance between two points m Area m 2 - Amount of surface Volume - Amount of space an object takes up m 3 Mass - Amount of matter in an object kg

Science Differentiation in action Review Questions 1. What do we use to find the volume of an irregular solid? 2. What do we use to find the mass of an object? HINT