A mixture is when two or more substances are joint together but can also be physically separated from each other. i.e mixtures are not chemically joint together

Examples of mixtures are…

salt+water=salt water solution

You can separate the salt water solution  by making the water evaporate

here is a experiment for you to try out

first you need to get a bow

then put 100g of water into it

then add 20g of salt

mix it up

Then it will turn into salt water solution

you will need to leave it on your sill window for the water to evaporate then the salt will turn into crystals form.

The digestive system is a group of organs working together to convert food into energy and basic nutrients to feed the entire body. Food passes through a long tube inside the body known as the alimentary canal or the gastrointestinal tract.

Food begins its journey through the digestive system in the mouth, also known as the oral captivity. Inside the mouth are many accessory organs that aid in the digestion of food—the tongue, teeth, and salivary glands. Teeth chop food into small pieces, which are moistened by saliva before the tongue and other muscles push the food into the pharynx.

Teeth. The teeth are 32 small, hard organs found along the anterior and lateral edges of the mouth. Each tooth is made of a bone-like substance called dentin and covered in a layer of enamel—the hardest substance in the body. Teeth are living organs and contain blood vessels and nerves under the dentin in a soft region known as the pulp. The teeth are designed for cutting and grinding food into smaller pieces .

your saliva is what brakes the food down as soon as it enters your mouth. Your tongue mixes the food with the siliva when it gets into your body it is then mixed with more of the siliva and then it is broken down.

hear is a example of a digestive system

what is tissues ?

A tissue is a group of similar cells grouped together to do a particular job. Tissues exists in plant and animals. Examples of animal and plant tissues are:

ANIMAL TISSUES                                                                       PLANT TISSUES

muscle tissues                                                                               palisade tissue

epithelial cell                                                                                   root tissues

nervous tissues