Year 1 Science: Glass and water
Part of the Year 1 Science objects and materials chapter. Chapter overview · whole chapter on one page · Download worksheet (PDF) · Answers (PDF)
Glass and water
Glass is hard and see-through. We can see through a window or a clear jar. Glass is made by heating sand until it melts, then letting it cool.
Water is a liquid. It is see-through when it is clear. We find water in puddles, in rain and in drinks. Water has no shape of its own. It takes the shape of the container it is in.
Metal is not see-through. You cannot see through a tin.
Key ideas
- Glass is hard and see-through. Light can pass through it.
- Metal is not see-through.
- Water is a liquid. It takes the shape of its container.
- Glass is made by heating sand until it melts.
Key words. An object is a thing, like a chair. A material is what an object is made from, like wood.
Method. Think about what the jar is made from.
- Look at the jar. Think about the stuff it is made of, not what it is used for.Object: jar
- Find its material. The material is the stuff the jar is made from.jar = glass
- Write the answer. glass
Check. Say it as a sentence: The jar is made from glass. ✓
Watch out. Say the material, not the object. The jar is the object. Glass is what it is made from.
Key words. An object is a thing, like a chair. A material is what an object is made from, like wood.
Method. Look at each choice. Pick the one made from glass.
- Look at each choice. Think about what each one is made from.tin: metal; jar: glass
- Find the one made from glass. Only one choice has this material.jar is made from glass
- Write the answer. jar
Check. The other choices are made from different materials. ✓
Watch out. Look at the material, not the shape. Only the jar is made from glass.
Key words. An object is a thing, like a chair. A material is what an object is made from, like wood.
Method. Think about what the puddle is made from.
- Look at the puddle. Think about the stuff it is made of, not what it is used for.Object: puddle
- Find its material. The material is the stuff the puddle is made from.puddle = water
- Write the answer. water
Check. Say it as a sentence: The puddle is made from water. ✓
Watch out. Say the material, not the object. The puddle is the object. Water is what it is made from.
Watch out
Watch out: water has no shape of its own. Pour it into a tall glass and it looks tall. Pour it into a wide dish and it spreads out. The glass keeps its shape. The water does not.
Exam tip
Grown-up tip. Look through a clean glass jar at a window together, and try to see through a metal tin. Ask: “Can you see through it?” Glass can break, so only handle it with a grown-up.
Try it at home
With a grown-up, put a clean glass jar and a metal tin on the table. Hold each one up to the window. Can you see through each one? Tell a grown-up what you notice. Keep glass away from the edge of the table.
Working scientifically
What do you think will happen to the water when we pour it into a tall, thin glass and into a wide, flat dish? How could we find out?
Exercise 7C Glass and water
Key words. An object is a thing, like a chair. A material is what an object is made from, like wood.
Method. Think about what the window is made from.
- Look at the window. Think about the stuff it is made of, not what it is used for.Object: window
- Find its material. The material is the stuff the window is made from.window = glass
- Write the answer. glass
Check. Say it as a sentence: The window is made from glass. ✓
Watch out. Say the material, not the object. The window is the object. Glass is what it is made from.
Method. Think about what liquids do when they are poured.
- Think about pouring. Water pours, and it spreads out to take the shape of its container.water pours = liquid
- Pick the word. A liquid pours and has no shape of its own, like water.water = liquid
- Write the answer. liquid
Check. Pour a little water from a cup to check it pours. ✓
Watch out. Solid things keep their own shape. Water does not.
Method. Think about which material we can see through.
- Think about metal. Metal is not see-through, so we cannot see through a metal spoon.metal: no
- Think about glass. Glass is see-through, so we can see through a glass jar.glass: yes
- Write the answer. glass
Check. Glass is see-through. Metal is not. ✓
Watch out. Metal can look shiny but you cannot see through it.
Method. Check the statement against what you know.
- Read the statement. Read every word, and think about what it says.Water has its own shape.
- Check the facts. Water takes the shape of its container, so it has no shape of its own.False
- Write the answer. False
Check. Say the answer back with the reason: Water takes the shape of its container, so it has no shape of its own. ✓
Watch out. Check each word. One wrong word makes the whole statement wrong.
Method. Check the statement against what you know.
- Read the statement. Read every word, and think about what it says.Metal is not see-through.
- Check the facts. You cannot see through a metal tin, so metal is not see-through.True
- Write the answer. True
Check. Say the answer back with the reason: You cannot see through a metal tin, so metal is not see-through. ✓
Watch out. Check each word. One wrong word makes the whole statement wrong.
Key words. An object is a thing, like a chair. A material is what an object is made from, like wood.
Method. Look at each choice. Pick the one made from glass.
- Look at each choice. Think about what each one is made from.chair: wood; window: glass
- Find the one made from glass. Only one choice has this material.window is made from glass
- Write the answer. window
Check. The other choices are made from different materials. ✓
Watch out. Look at the material, not the shape. Only the window is made from glass.
Key words. An object is a thing, like a chair. A material is what an object is made from, like wood.
Method. Think about what the puddle is made from.
- Look at the puddle. Think about the stuff it is made of, not what it is used for.Object: puddle
- Find its material. The material is the stuff the puddle is made from.puddle = water
- Write the answer. water
Check. Say it as a sentence: The puddle is made from water. ✓
Watch out. Say the material, not the object. The puddle is the object. Water is what it is made from.
Key words. An object is a thing, like a chair. A material is what an object is made from, like wood.
Method. Think about what the tin is made from.
- Look at the tin. Think about the stuff it is made of, not what it is used for.Object: tin
- Find its material. The material is the stuff the tin is made from.tin = metal
- Write the answer. metal
Check. Say it as a sentence: The tin is made from metal. ✓
Watch out. Say the material, not the object. The tin is the object. Metal is what it is made from.
Key words. An object is a thing, like a chair. A material is what an object is made from, like wood.
Method. Count only the things made from glass.
- Look at each thing in the picture. Check what each one is made from.jar: glass; tin: metal; window: glass; jar: glass
- Count the things made from glass. Count only those, and leave out the others.jar, window, jar = 3
- Write the answer. 3
Check. Count the things again from the start. You get 3 again. ✓
Watch out. Count only the things made from the material you are asked about.
Method. Think about what water does when it is poured into a glass.
- Look at the water in the glass. The water is inside the glass, so it fills the glass.water in the glass
- Find the shape. Water takes the shape of the container it is in.shape = the glass
- Write the answer. The shape of the glass.
Check. The water is the same shape as the glass it is in. ✓
Watch out. Water does not keep its own shape. It takes the shape of the container.
Method. Think about liquids and their shape.
- Think about milk or water. A liquid, such as water, does not keep its own shape.liquid: no shape of its own
- Answer the question. So a liquid does not have its own shape.liquid: no
- Write the answer. no
Check. Pour a liquid into a bowl and then into a cup. It takes each shape. ✓
Watch out. A solid, like a stone, keeps its own shape.
Method. Think about shine and see-through.
- Look at the tin. A tin is made of metal.tin = metal
- Think about whether metal is see-through. Metal is not see-through, even when it is shiny.shiny does not mean see-through
- Write the answer. No. Metal is not see-through, even when it is shiny.
Check. Metal is shiny, but you cannot see through it. ✓
Watch out. Shiny and see-through are different things.