Heart, moon and star dot to dot game. Interesting facts:
The average adult heart beats 72 times a minute; 100,000 times a day! The study of the human heart and its various disorders is known as cardiology.
The Moon orbits the Earth every 27.3 days; The Moon's orbit around the Earth is a slightly squashed circle called an ellipse; Tallest mountain on the Moon is 4700 metres tall; The Moon has no atmosphere.
Stars have their own gravity fields, which keep them close to each other; The universe has more than 100 billion galaxies with each galaxy containing an average of 100 billion stars.