fbpx

Natural Pigments

Sourgrass with bright yellow blooms
Sourgrass produces a bright yellow color

Experiment with creating art from nature! Many plants and rocks have pigments inside of them that you can paint or draw with. You can even go one step further and try making your own paint brush from found natural materials! 

How to find materials

Look in sidewalk cracks for leaves or flowers and look in dirt patches for different types of rocks. Look on bushes or trees for berries, flowers, and leaves. My favorite is oxalis, more commonly known as sourgrass (pictured to the right). It is a yellow flower that is common in Santa Cruz and makes a highlighter yellow color when used as natural paint. Bonus: this plant is invasive and is often considered a weed that you could completely remove.

A cluster of blueberries
Look in your kitchen for pigment materials!

On the other hand if you want to create art from nature but want to stay inside you can do that too! Some of your food can be used to paint and draw. For example, you can use colorful spices such as turmeric or paprika to create paint by mixing the powder with water. Beets, purple cabbage, and berries will also work – they often turn my cutting board different colors when I am chopping them! If you have a fireplace you can even use the small pieces of burnt wood that are left behind to draw with or you can grind it up and mix with water to create black paint. 

Collecting plants

  • Be respectful of the plants you collect
  • Only take what you need or take less than 10% of a plant (If there are 10 leaves on the plant, take only 1 and find other plants to pick from if you need more)
  • Collect with permission on private property and do not collect in State Parks
  • Stay away from harmful plants such as poison oak and stinging nettle

Creating Paint

  • Use your hands or a spoon to grind up the plants or rocks 
  • Try adding water or soaking items in warm water to soften them
  • Be patient, making your own paint is an experiment and it will often give you interesting surprises! See what happens if you add baking soda or vinegar- sometimes this will change the color of a paint!

Questions to ponder

  • What colors do you predict will be created from your items?
  • Did any of the colors surprise you? Why?
  • How did the colors change over time?
  • How did the colors change when you added different things (like baking soda or vinegar)?

Post by Elise

Pollinator Matching Activity | 2nd grade

Bee carrying deposits of pollen as it visits a new flower

As we enjoy the blooms of spring, we have many creatures to thank. Show us what you already know about pollinators by playing a matching game! Then go on a scavenger hunt to continue learning about pollinators around your home.

Preparation: 

  • Print out Pollinator and Flower Sheets. Cut out cards. Fold each card at the middle line so one side shows the image and the other side shows the information. (you can tape, glue or staple so that it stays together). 
  • Print out Pollinator Scavenger Hunt Data Sheet to use after the matching game

Matching Game:
Show off what you know and match the picture of a pollinator with the picture of a flower you think they would be most attracted to. Check your answers using the information on the back of each image.

  • Go on a pollinator scavenger hunt! Look out your window or go outside into your backyard or neighborhood. Use your data sheet to record what you find. 
  • There are many more pollinators in the world than are included in the pollinator matching game. What new pollinators do you notice? Take the time to look inside flowers and smell them too!
  •  Choose one of the new pollinators you saw to learn more about. Then make your own pollinator card to add to the game!
    • You can use the pollinator and flower cards as a guide to make your own card. 
    • Cut a piece of paper to match the size of the cards. Draw a picture of the pollinator one one side and then flip over to write facts from the links below on the opposite side.

Questions to think about:
Have you heard of a pollinator? What do they do?
What are some pollinators that you have seen before?

More Information 
Click here to learn more about pollination and pollinators
Click here to learn how to help protect pollinators 

Explore more resources about pollinators in our Online Museum Store.

Post by Elise

Great Horned Owl Activity | 3-5 grade

When the sun goes down and we head to bed, a different world is waking up! We may be able to hear some of these creatures of the night “hoo-hoo-”ing to each other as they wake up and we turn inside. How do they live? What special features help them thrive in the dark? Take a closer look at the great horned owl and practice your naturalist skills of making observations and matching form to function.

In this 45-60 minute activity students will learn about the ways in which the great horned owl is able to survive in its habitat using its adaptations. Explore the resources below:


Great horned owl
Great Horned Owl
Bubo virginianus

Teacher’s Guide
This guide helps to lead opening and follow-up discussions, and outlines NGSS connections.


Great Horned Owl Adaptations
This guide provides a worksheet and powerpoint with thought provoking questions, facts, visuals, and videos to explore the many adaptations that owls have developed.


Owl Pellet and Food Wed Activity Guide
Use the contents of an owl pellet to explore the concept of food webs and build one of your own with this set of worksheets and guides.


Learn more about our kit and specimen rentals, including a mounted great horned owl.
Learn more about birds with the resources in our Online Museum Store.

Post by Ellen and Elise

Solo Beach Cleanup

Beach cleanups are a way we can all enjoy the outdoors while serving our community. Whenever you’re walking along a beach, river, or other waterway, you can help keep it clean. While there’s a lot we can all do with reducing our own waste, cleanups can prevent some of it from going into our oceans. (As with all activities, remember to practice good social distancing!) Here’s what you need to know about conducting your own beach cleanup:

Helpful Tips and Suggestions

  1. Never touch anything with your bare hands. Be sure you’re wearing gloves. As for me, I use gardening gloves. The best thing is that they are washable, so I can keep reusing them. I also recommend close toed shoes.

  2. I use a bucket instead of a plastic bag to reduce my waste. A reusable shopping bag is also effective.

  3. Do not touch anything sharp or organic. If you find dead animals or waste (poop), just leave it. If you find a biohazard, like a syringe, do not pick it up. If you want, you can call the police and tell them exactly where the biohazard is located, but you are not obligated to.

  4. If you see any living wildlife, give it plenty of space and do not disturb it. Even if that elephant seal is sitting right on top of a piece of plastic, let it be. Also, remember that all Marine Mammals are protected under the Marine Mammal Act.

  5. Both the city and the county of Santa Cruz have specific but different criteria for what constitutes trash or recycling. I highly recommend you take a look at those before you start your cleanup:
  6. Pay attention to microplastics, or plastics that are smaller than 5 mm. Microplastics are by far the majority of the plastics that make it into our oceans. Just like larger pieces of plastics, any microplastic that gets ingested can’t be digested. And that’s not just for ocean animals. It’s estimated that we humans eat about a credit card’s size worth of plastic every week. Learn more here! 

  7. Take data! This will help researchers implement policies to reduce plastic pollution worldwide. I recommend you either download the Save Our Shores Marine Debris App or use the Save Our Shores data card. If you use a data card, you can take a picture of it and send it to us at volunteer@santacruzmuseum.org.

And lastly, remember to have a good time. Take a moment to enjoy the waves and the fresh air. We are so lucky to live in a place with gorgeous forests, a healthy ocean, and, most of all, with wonderful people.

Post by: Natalie

Observing Clouds Activity

Learn about different types of clouds, recording daily observations of clouds on your cloud chart, making weather predictions, and an experiment to make your own cloud at home!

What are clouds?

Clouds are made up of water droplets or ice crystals that float in the sky. We can learn a lot about the weather by looking at clouds.

Types of Clouds 

Types of clouds, including contrails, cumulus, cumulonimbus, cirrocumulus, nimbostratus, altostratus, cirrostratus, stratocumulus, fog, cirrus, altocumulus, and stratus clouds

Go outside and observe the clouds. Based on the diagram above, which clouds do you see today? If there are no clouds in the sky think about why that might be. Identify your clouds using this NASA Cloud Chart (Guía de las Nubes en español), and learn more about each type of cloud here

Each day go outside and observe the clouds for one week and record your observations in this downloadable cloud chart. Make weather predictions based on what you have learned about different types of clouds. At the end of the week you can look back on your weather predictions and reflect on if they were correct or not. Use your data to see which clouds were most common during that week. 


Download and print this worksheet to aid in your observations — or make your own!

My Cloud Chart (PDF | HTML)
My Cloud Chart (Spanish Version) (PDF)

Guiding Questions for Cloud Observations

  • Are they high, middle, or low clouds?
  • What do they remind you of? Do you notice any familiar shapes in the clouds today?
  • Are the clouds blocking the sun or moon?

Optional: Pair this with our Weather Observation Activity

Try This: Make a Cloud in a Jar! 

Materials: a jar, water, lid, and hairspray. 
Kid-friendly instructions for making your own cloud: https://www.notimeforflashcards.com/2015/03/make-cloud-jar-kitchen-science.html

Post by: Elise

Gettin’ Birdy: Seabright Neighborhood Walk

There are quite a few habitats to be found around the Santa Cruz Museum of Natural History. Today we will go on a short walk starting at the Museum, and ending at Arana Gulch Open Space Park. The Museum is located in Tyrrell Park. Let’s start there, where a number of interesting neighborhood birds live. House finches (Haemorhous mexicanus) and golden-crowned sparrows (Zonotrichia atricapilla) can be found flying through the bushes while the occasional red-shouldered hawk (Buteo lineatus) can be seen in the big eucalyptus tree. Bushtits (Psaltriparus minimus) can be seen flitting through the shrubs, making their “plinking” calls as they look for insects, sounding like tiny little tambourines.

As you walk out toward Seabright Beach you will probably see a wide variety of gulls and the American crow (Corvus brachyrhynchos) poking around looking for something to eat. In the water you might see the brown pelican (Pelecanus occidentails) flying around or the double-crested cormorant (Phalacrocorax auritus) swimming around chasing fish. As you walk towards the Santa Cruz Harbor and lighthouse keep your eyes peeled for the snowy plover (Charadrius nivosus) hiding in the sand dunes. Please keep your distance from these adorable and threatened birds as they nest on the same beaches that we play on, so we need to respect their space and their home. 

While you’re walking through the Santa Cruz Harbor, be on the lookout for some of the marine mammals that occasionally cruise through including California sea otters (Enhydra lutris nereis), the Pacific harbor seal (Phoca vitulina richardii), and the California sea lion (Zalophus californianus). Perched on the masts of the boats you might see the black-crowned night heron (Nycticorax nycticorax) or even a great blue heron (Ardea herodias) with its wingspan of over 6 feet. 

If you head north through the Harbor you will come to Arana Gulch Open Space Park. This 67 acre park has open meadows surrounded by wetlands and beautiful oak forest. There have been many amazing wildlife sightings at Arana Gulch, including coyotes (Canis latrans) and golden eagles (Aquila chrysaetos). The wetland on the east side is home to the belted kingfisher (Megaceryle alcyon), a small and vocal bird which can be seen diving into the water to catch fish. The oak forests surrounding the edges provide habitats for the downy woodpecker (Dryobates pubescens) and the California scrub jay (Aphelocoma californica). In the meadows you can see the western bluebird (Sialia mexicana) and the western meadowlark (Sturnella neglecta) perched along the fences while you can often find the red-tailed hawk soaring overhead.

This short, hour-long walk takes you through some beautiful habitats and shows how nature is your neighbor and not something far away or hard to find.

Post by: Chris

Lecture: Loma Prieta +30 with Frank Perry

The Loma Prieta Earthquake of October 17, 1989 did over $6 billion in damage to the Monterey Bay and San Francisco Bay areas of central California. This Naturalist Night lecture at the Santa Cruz Museum of Natural History was presented by Capitola Museum Curator Frank Perry on the occasion of the quake’s 30-year anniversary, October 17, 2019, in partnership between the two museums.

This lecture focuses on the geologic setting of the epicenter and phenomena associated with the earthquake. This video was created by Frank, combining an audio recording with the slides used in the talk. The speaker, Frank Perry, is introduced by our Public Programs Manager Marisa Gomez.

Tree Canopy Activity | 4-5 grade

Learn how to explore the habitats around you by measuring tree canopy cover. This activity is adapted from the Museum’s Nature Rangers school program.

Download and print this worksheet (PDF | HTML) to aid in your observations — or make your own!

Explore more resources about trees and plants in our Online Museum Store.

Post by: Natalie

Gettin’ Birdy: Where are the Birds?

Birds are, quite literally, all around us. They are a constant presence in our cities, parks, and open spaces. The previous post provided an introduction to the “why” of birdwatching, and some basic tools and tips to get started. This post will introduce a selection of species that are common across nearly all habitat types in Santa Cruz – “the regulars”. Following “Gettin’ Birdy” posts will take deeper dives into particular birding hotspots, as well as bird biology and behavior. 

One of the great benefits of birdwatching is that birds are present in our cities and urban spaces. You don’t have to get far out into nature to see interesting species or witness unusual behavior. In fact, there are many interesting behaviors that are exhibited by birds that thrive alongside our city streets and buildings. Look for nests under the eaves of buildings or in brushy areas of backyards, and even in planters and garden boxes – certain ground-nesting birds often hide beneath ornamental shrubs and flowers! As you begin to explore your neighborhood and local area for birds, it can be nice to have an idea of what you might be seeing. The species list and images below can serve as a nice primer for “the regulars” that you may be able to see from your own window, front porch, or yard.

Post by: Spencer