SCIENCE-THIRD PRIMARY YEAR CEIP CORTES DE ARAGÓN

(Teacher: Miguel Navarro)

- MATTER IS ANYTHING WE CAN SEE, TOUCH, TASTE ORSMELL

- EVERYTHING IS MADE UP OF MATTER

- WE CAN DISTINGUISH 2 DIFFERENT TYPES OF MATTER CHANGES:

- PHYSICAL CHANGES- CHEMICAL CHANGES

1.- PHYSICAL CHANGES1.- PHYSICAL CHANGES

- WHEN WE CHANGE SHAPE, SIZE, COLOUR OR STATE WE WHEN WE CHANGE SHAPE, SIZE, COLOUR OR STATE WE ARE MAKING PHYSICAL CHANGES. EXAMPLES:ARE MAKING PHYSICAL CHANGES. EXAMPLES:

• CHANGE OF STATE: CHANGE OF STATE: WHEN WE CHANGE THE STATE OF WHEN WE CHANGE THE STATE OF WATER FROM A LIQUID TO A SOLID BY FREEZING IT AND WATER FROM A LIQUID TO A SOLID BY FREEZING IT AND MAKING ICEMAKING ICE

• CHANGE OF SHAPE: CHANGE OF SHAPE: WHEN WE BEND, TWIST, PRESS OR WHEN WE BEND, TWIST, PRESS OR STRETCH PLASTICINESTRETCH PLASTICINE

2.- CHEMICAL CHANGES2.- CHEMICAL CHANGES

- IN A CHEMICAL CHANGE, THE MATTER CHANGES INTO DIFFERENT MATTER

- COMBUSTION, OXIDATION AND COOKING ARE CHEMICAL CHANGES

• COMBUSTION- WHEN WE BURN WOOD OR PAPER THE MATERIALS

TRANSFORM INTO SMOKE AND ASHES

• OXIDATION- THE METAL CHANGES INTO RUST

• COOKING- WE TRANSFORM INGREDIENTS INTO A NEW FOOD