5 . Selecting gifts for your beloved ones can be one of the most difficult parts. But don’t worry! We can help! Here are some gift ideas to suit all pockets.

Do you have a loved one who suffers from allergies (过敏) or other skin diseases? Why not gift him or her an air cleaner? Research has shown that air purifiers can help reduce allergy reactions, remove asthma (哮喘) causes such as dust by improving air quality in your home. Look for purifiers with more than one filter and, especially, a high efficiency air filter.

One review of 56 studies has found that a powered toothbrush resulted in a 21 per cent reduction of plaque and an 11 per cent reduction in gingivitis (牙龈炎) after three months, compared with a manual toothbrush. It’s also a fun way for children to look after their dental hygiene.

Nothing screams a gift quite like chocolate. Good news is that dark chocolate is associated with several health benefits. Small amounts of this sweet treat may lower the risk of heart disease, improve brain function and give your immune system a boost, potentially reducing infection.

Quality time spent with your nearest and dearest is completely free, but is the most precious gift you could give them. If you’ve been too preoccupied of late, determine to put aside more hours to do fun things together, or if you have time to devote to others outside your immediate circle, consider volunteering with Age UK as a friend to an elderly person.

6 . Blowing Up Balloons with CO₂

Chemical reactions (化学反应) make for some great experiments. You can make use of the CO₂(carbon dioxide) given off by a baking soda (小苏打) and lemon juice reaction to blow up your balloon!

What you’ll need:

●Balloon        ●About 40ml of water        ●Soft drink bottle

●Juice from a lemon          ●I teaspoon of baking soda

Instructions:

●Before you begin, make sure that you pull the balloon long to make it as easy as possible to blow up.

●Put the 40ml of water into the soft drink bottle.

●Add the baking soda and mix it with water.

●Put the lemon juice in and quickly put the balloon over the mouth of the bottle.

What’s happening?

If all goes well, then your balloon should inflate! Adding the lemon juice to the baking soda creates a chemical reaction and produces CO₂. The gas rises up and escapes (逸出) through the soft drink bottle. It doesn’t, however, escape the balloon, pushing it outwards and blowing it up.