Using solar ovens to learn about how energy changes forms can be tricky. Here are some of the challenges:

1. Inefficiency: Solar ovens sometimes don't get hot enough to cook food. This can happen if there isn’t enough sunlight or if the oven isn’t well insulated.

2. Weather Dependence: When it’s cloudy or rainy, solar ovens don't work well. This makes it hard to rely on solar energy for cooking every day.

3. Time Consumption: Cooking with solar ovens can take a lot longer than using regular ovens. This might not fit everyone's busy schedule.

Solutions:

• Make the design better by using stronger materials and reflectors to help the oven work more efficiently.
• Create cooking methods that use sunlight better, like making sure the oven is in the right spot.
• Use solar cooking along with regular cooking methods to have more options for making meals.