Magnetism
What do we call the two ends of a magnet where the magnetic force is strongest?
我们把磁铁两端磁力最强的部位称为什么？
Poles (North and South poles)
What type of change is melting ice to form liquid water?
冰融化成液态水是物理变化还是化学变化？
A physical change
Is magnetic force a contact force or a non-contact force?
磁力是接触力还是非接触力的例子？
A non-contact force
What basic unit of life must divide repeatedly in order for an organism to grow larger?
生物体为了长大，什么生命的基本单位必须重复分裂？
Cell
Which layer of the Earth is the thin, solid outermost layer that we walk on?
地球的哪一层是我们行走的、薄而坚硬的最外层？
The crust
Name one of the three common magnetic metals found in the periodic table.
说出元素周期表中常见的三种磁性金属之一的名称。
Iron, Nickel, or Cobalt
What gas is produced when a reactive metal reacts with an acid?
当活泼金属与酸反应时，会产生什么气体？
Hydrogen gas
What happens to the speed of an object if the resultant force acting on it is in the same direction it is moving?
如果作用在物体上的合力与其运动方向相同，物体的速度会发生什么变化？
It increases / accelerates
Which major food group provides the primary building blocks needed for growing strong muscles and repairing body tissues?
哪种主要食物类别提供了生长强壮肌肉和修复身体组织所需的主要构建块？
Proteins
What process describes a liquid slowly turning into a gas at a temperature below its boiling point?
哪个过程描述了液体在低于其沸腾点的温度下缓慢变成气体？
Evaporation
What invisible area around a magnet is the space where magnetic forces can act?
磁铁周围允许磁力起作用的隐形区域称为什么？
A magnetic field
What safety indicator range on the pH scale represents a completely neutral solution?
pH值范围内的哪个安全指示数值代表完全中性的溶液？
pH 7
What name is given to the force that opposes the motion of objects moving through water?
阻碍物体在水中运动的力被赋予了什么名称？
Water resistance / drag
What mineral must children consume in their diet to grow strong, healthy bones and teeth?
儿童必须在饮食中摄入哪种矿物质才能生长出强壮、健康的骨骼和牙齿？
Calcium
What is the name of the green pigment inside plant cells that traps light energy for photosynthesis?
植物细胞内部捕捉光能用于光合作用的绿色色素叫什么名字？
Chlorophyll
What type of magnet can be turned on and off using an electric current?
哪种类型的磁铁可以通过电流来开启和关闭？
An electromagnet
What specific gas is produced when a metal carbonate reacts with an acid?
当金属碳酸盐与酸反应时，会产生什么特异性气体？
Carbon dioxide
Why do heavy snow boots stop you from sinking into soft deep snow compared to high heel shoes?
THINK ABOUT PRESSURE
相比于高跟鞋，为什么沉重的雪地靴能防止你陷进柔软的深雪中？
They spread the weight over a larger surface area, lowering the pressure
What type of joint is found in the shoulder and hip, allowing the widest range of growth and movement in multiple directions?
肩部和臀部属于哪种类型的关节，允许在多个方向上进行最大范围的生长和运动？
Ball and socket joint
What biological process is summarized by the word equation:
C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP
哪个生物学过程可以用文字表达式总结
Respiration
Name two ways you can increase the strength of a temporary electromagnet.
说出两种可以增强临时电磁铁磁力的方法。
Increase the current / add more turns to the coil / use an iron core
What happens to the pH of an acidic solution if you continuously add water to dilute it?
如果你不断加水稀释酸性溶液，该溶液的pH值会发生什么变化？
The pH increases (moves closer to 7)
What turning effect of a force occurs when someone uses a spanner/wrench to turn a bolt around a pivot point?
当有人用扳手绕着支点转动螺栓时，会产生力的什么转动效果？
A moment
During strenuous exercise, what waste product builds up in the muscles if they do not receive enough oxygen to perform aerobic respiration?
在剧烈运动中，如果肌肉没有获得足够的氧气来进行有氧呼吸，肌肉中会堆积什么废物？
Lactic acid
What chemical chemical substance in red blood cells increases in total volume when an athlete trains regularly, allowing more oxygen to be carried to muscles?
当运动员进行规律训练时，红细胞中的什么化学物质的总量会增加，从而允许更多的氧气被输送到肌肉？
Haemoglobin