Mira's Science Blogs

Summary: This week we were making posters about plant and animal adaptations. Adaptations are things that help plants and animals survive. Every plant and every animal has an adaptation. The animal that I chose is a porcupine. The plant that I chose is a birch tree. Here are some porcupine adaptations that I decided to write about: Structural Adaptations: Porcupines have sharp quills on their back that stand up when the porcupine is threatened. These quills will hurt the predator when they get near them, even though they will not stay in for very long. Quills will grow back once they fall out. Toes and claws help the porcupine dig up plants to eat, tear up tree bark to eat, and climb trees to get away from predators. Underfur is a warm layer of fur that warms up the porcupine in the winter.  Porcupines have really good ears to help listen to predators coming, and to hear other porcupines. Behavioral Adaptations: Smells help the porcupine to c

https://s-media-cache-ak0.pinimg.com/originals/3a/8d/21/3a8d2195bfabad750814c693a3eacf48.gif Summary: This week we have been learning about adaptations. Adaptations are things that help all living things be able to reach their ultimate goal. The ultimate goal for all living things is to survive to reproduce. There are things that animals and plants need to survive. Animals need: food water shelter air Plants need: sunlight water food air All living things change over time so it is easier for them to fit in their environment. For example, when wolves started being tamed, and allowed in houses, they started to change into dogs. Their teeth are not fit for hunting animals, or breaking them apart to eat. There are more things, but I have more to talk about. Do people ever tell you that you have the same eyes as your mom, or the same nose as your dad? Adaptations are inherited characteristics that help organisms survive long enough to reproduce. What

http://www.revisioncentre.co.uk/gcse/biology/diffusion.gif Diffusion and Osmosis This week we were learning about diffusion and osmosis looking at concentration. We also learned about the different kinds of solutions and concentrations. Diffusion is when particles/molecules spread out. In other words, it is the movement of particles from an area of high concentration to an area with low concentration. For example, when you put a drop of food coloring into a cup with water, the food coloring will spread out trying to get to a place where there is a low concentration of food coloring. As another example, the smoke from an oven moves from the kitchen to the rest of the rooms in the house. Image link Osmosis is the movement of water molecules from a high concentration of water to a low concentration of water through a semi-permeable membrane. A semi-permeable membrane (like the cell membrane) is a membrane that gets to decide which substances are allowed to pass, and which

https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhNUdF87KQ2fADpml7wy_q-Z1O_NMwaDKqZiSFDyZ7CckxADNoNtisQM_dMF4Cwp3dI05SVkLLoLFKSoKUDtu4p2rb9ouGPrY0JR1WXCQPzQ7wo216Ni0LkgkkoqXLS8nTZQO1OHd7tLjU/s1600/4charts.GIF Summary: This week we have been learning about the four main groups of organic molecules. These include nucleic acids, carbohydrates, lipids, and proteins. We also learned about the elements that make up all of the molecules of living things. These include carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorus. How do you remember all of those elements? CHONPS. One way is Chloe has one neon (or new) purple shoe. You can use whatever sentence that will help you remember these elements. Nucleic Acids: Nucleic acids are like building blocks that make up all living organisms. Nucleic acids contain instructions that cells need to preform all of its functions. It is made up of the elements carbon, oxygen, hydrogen, nitrogen, and phosphorus. The monomer (or si