If you are investing for only a year or two, it may be a good idea to stick with a cash deposit account. If you can invest over a period of at least two years, you may like to consider adding some bonds. Equity investments, however, should be for the longer term - at least three years or more. Generally, the longer you can afford to leave your money invested and the more risk you can accept, the higher the potential return. Risk and reward go hand in hand.
Safe investments tend to offer low returns.
Higher risk funds that aim for maximum growth may fluctuate sharply in the short term, but could grow your money over time. Try to decide between money that must be kept fairly safe and money you are able to take some risks with. If you work to a budget, a regular return that you can rely on may be the most important thing. If you are saving for a rainy day, a moderate return with moderate risk could be ideal. If you want to build up as much wealth as possible over the next 20 years, then you could invest for the highest possible growth.