Why when you wear gloves do your fingers get colder not warmer?

Hmmm we’re not sure but have a few ideas. If your gloves get wet or damp then the water will quickly transfer heat from your fingers to the air which will make them colder. When you separate your fingers by wearing gloves they don’t benefit from the warmth of their neighbouring finger friends, they have to fend for themselves. When you are not wearing gloves you can squeeze your hands into a fist and warm your fingers in the palm of your hand which you can’t do in gloves. Gloves don’t warm hands they are intended to keep them insulated so that the heat your body generates is not lost to the air. Gloves work best if you keep them dry and have a little space in them for some air, a bit big is normally a good thing. Air trapped between your fingers and gloves can act as a good insulator and help to make your fingers stay warmer.

What senses will birds use to find our coconut? Do they smell or see it?

Being small and warm-blooded, birds need to eat frequently to keep their energy levels up so they spend much of the time on the look out for new food sources. They will fly around or survey the area from the tops of trees constantly searching for anything that could be a potential new source of food.

Although some birds such as parrots, kiwis and vultures have a good sense of smell and will locate food using their olfactory glands, most birds use vision to find food. And because they spend so much time searching for food they become quite good at it. Birds also have good memories which helps them remember where food may be or look out for changes in the landscape that may signal food is about.

Birds may even be able to recognize bird feeders, not because of evolution, but simply because they are familiar with them. They may also start to learn the routines of people putting out food in their garden – have you ever gone to put out some food in the morning to find a bird is already waiting for you?

Once a bird has found a source of food, it may call to its mate or if there is plenty to go round to other members of its flock. However, if other uninvited birds turn up then they may begin fighting over food and the threat calls can alert other birds that something interesting is going on so they will join the party.

How does a car work?

A motor car engine is an Internal Combustion Engine (ICE). Energy is created by burning either diesel or petrol in a combustion chamber. In such an engine, the energy is transferred from the pistons moving up and down at high speeds. This up-down motion is converted to a rotary motion through the crankshaft and axle. The axle turns the wheels and make the car move forward. The four strokes of the engine refer to intake, compression, combustion, and exhaust. One complete cycle occurs with every 2 crankshaft rotations.

INTAKE STROKE:
The cycle begins when the piston is at the top of the cylinder and is moving downward. This causes a mixture of petrol and air (or just air in the case of a diesel engine) to be released into the cylinder.

COMPRESSION STROKE:
The piston continues to move upward and compresses the mixture inside the cylinder.

POWER STROKE:
The power stroke begins the second rotation of the crankshaft. A spark ignites the mixture of petrol and air inside the cylinder. In the case of a diesel engine it is during this phase that diesel is injected into the cylinder. The pressure created from combustion pushes the piston back down.

EXHAUST STROKE:
During this stroke the exhaust valve opens and the piston pushes the by-products of combustion out of the cylinder.

We found a little video with some REALLY annoying music that helps explain it…

What is plastic made of?

It might help to think of it like baking! When you make plastics you use different ingredients in different forms. By mixing everything together in the right combination and heating to the right temperature for the correct duration, you transform the ingredients into a new material. But instead of eggs and flour you use crude oil as the main ingredient. And you end up with plastic instead of cake.

We found a really good website that tells you all about plastic…

https://www.natgeokids.com/uk/discover/science/general-science/all-about-plastic/

What is the circumference of the moon?

Earth’s moon is the brightest object in our night sky. It appears quite large, but that is only because it is the closest celestial body. The moon is a bit more than one-fourth (27 percent) the size of Earth, a much smaller ratio (1:4) than any other planets and their moons. Earth’s moon is the fifth largest moon in the solar system.

The moon’s mean radius is 1,079.6 miles (1,737.5 kilometers). Double those figures to get its diameter: 2,159.2 miles (3,475 km), less than a third the width of Earth. The moon’s equatorial circumference is 6,783.5 miles (10,917 km).

Are there king bees as well as queen bees?

All the worker bees in a hive, along with the queen, are females. In fact, the female worker bees actually all make decisions collectively, often without the queen’s input. Therefore, the queen bee is more like the ‘mother’ of the hive and there is no King