Wordwall

Wordwall provides teachers with a variety of templates, ranging from the common multiple-choice quizto matching pairs, anagram, sorting out, or cloze questions. Teachers can create resources and host activities by sharing an assignment link with students. Students can do the activities as an interactive in-class part or as homework. Teachers can track students’ activity result when they finish.
https://wordwall.net/

Love that it is gamified and there is even a leadership board.

Creating the activity is easy too.
Just select a template and scroll below the examples of the chosen template and click create. You can see the list of templates available below.

An example of one which I created in 5 mins using the match up template.

I just input the instrument name and under definition I clicked on the picture icon for image. You can upload the image or search as shown below. 

The following image is what the students will see. The keywords ie the weather element which the weather instrument measures are displayed on top and they can simply drag it to match with the picture of the weather instrument. 

You can easily switch template by clicking from the menu on the right. I have chosen the gameshow quiz template. 

I love that it can be assigned directly to Google Classroom. Differentiated instructions can be practised by assigning a particular activity to selected students too.

You can try out the match up game below I have embedded below.

Or try the gameshow quiz which was generated so quickly with just a click on the switch template menu on the right. 

Do organise your activities by adding New Folder and renaming the folders.