The page you are about to enter is for grown-ups. Enter your birth date to continue.
A frog goes through four stages of life. As the frog grows, it changes. This is called metamorphosis. Here are the four stages. Egg Female frogs lay eggs. Tadpoles hatch from these eggs. It takes from one to three weeks…
It can be very cold or very hot in space. There is no air to breathe. An astronaut has to wear a space suit. Read about its different parts. 1. This is a backpack. It provides air to breathe. It…
NASA has a new space suit. It was made for astronauts going to the moon. NASA plans to get them there by 2025. The mission is called Artemis III. It will put a woman on the moon for the first…
Have you ever seen a snowflake? Snowflakes grow as moist air freezes in a cloud. No two snowflakes are alike. But they have shapes in common. Let’s see some. Columns and Needles These crystals form in warmer temperatures. They are long…
What happens to snow when the weather turns warm? It changes form. It goes from solid to liquid to gas. These are the main states of matter. Everything is solid, liquid, or gas. Heat and cold make matter change forms. …
Have you seen these birds? These four are common in many parts of the United States. Learn how to identify them. American robin (above) This bird has an orange breast. It likes to eat earthworms. Mourning dove This bird is…
There are many kinds of scientists. Each is an expert in a type of science. Some study animals. Others study the Earth or space. Read about four scientists. Planetary Scientist Jennifer Heldmann studies planets. She is looking for water…
Scientists use special tools to do their work. These tools are used to measure. Each tool uses a different unit of measurement. 1. A thermometer measures heat and cold. In the United States, degrees Fahrenheit are the units of…
Feeling scared is natural. It happens to all of us. Fear is a reaction. It happens in your body. It can alert you to danger. Here are some of the ways you feel fear. Your heart beats faster. Feel…
A farm is where food is grown or raised. Let’s take a tour of one. There are many things to see. Shapes are everywhere. What do you notice about the shapes on the farm? A circle is round. It…
