The picture shows a sealed box.
Inside it there is a helium balloon, and the dots show the air around the balloon.
A balloon feels very light.
State whether the helium balloon is matter or is not matter.
图中是一个密封的盒子。
里面有一个氦气球。
小点表示气球周围的空气。
气球感觉很轻。
请说出这个 氦 气球是 物质，还是不是 物质。
Your answer
Two balloons of the same size are placed on a balance, one on each side.
The balance bar stays level (flat).
Compare the mass of the two balloons.
两个一样大的气球放在天平上，每边一个。
天平的横杆保持水平（不歪）。
请比较这两个气球的 质量。
Your answer
A ball of clay has a mass of 200 g.
A student squashes the same clay into a flat pancake shape.
State the mass of the clay after it is squashed.
一团黏土的 质量是 200 克。
一个学生把同一团黏土压扁。
黏土变成薄饼形状。
请说出压扁后黏土的 质量。
Your answer
A torch shines a beam of light across a dark room.
You can clearly see the light.
Explain why the light is not matter.
一支手电筒在黑暗的房间里射出一束光。
你能清楚地看见这束光。
请解释为什么这束光不是 物质。
Your answer
The picture shows five things: water, sound, a coin, the sensation of smelling, and a glass bottle.
Identify the THREE things that are matter.
图中有五样东西。
水、声音和一枚硬币。
闻到气味的感觉。
还有一个玻璃瓶。
请找出其中三样物质(matter)。
Your answer
The picture shows a spoon.
The spoon is an object.
Name the material that this object is made of.
图中是一把勺子。
这把勺子是一个 物体。
请说出做成这个物体的 材料是什么。
Your answer
A coin has a mass of 8 g at the foot of a mountain.
A climber carries the same coin to the top of the mountain.
State the mass of the coin at the top of the mountain.
一枚 硬币在山脚下的 质量是 8 克。
一个登山者把同一枚硬币带到山顶。
请说出这枚硬币在山顶时的 质量。
Your answer
To be matter, a thing must pass a test with two parts.
Give the TWO things that something must have to be matter.
判断东西是否是物质(matter)。
要检查两项条件。
写出这两项条件。
Your answer
The picture shows three things: a brick, a glass of water, and light emitted by a flame.
Identify the TWO things that are matter.
图中有三样东西。
一块砖和一杯水。
还有火焰发出的光。
请找出其中两样是 物质的东西。
Your answer
Water in a tall thin glass has a mass of 300 g.
The water is poured into an empty wide bowl. All the water is transferred without loss.
Complete the table by writing the mass of the water in the bowl.
一个又高又窄的玻璃杯里的水，质量是 300 克。
这些水被倒进一个空的、又宽又矮的碗里。所有水都转移过去且没有损失。
请完成下面的表格，写出水在碗里的 质量。